Understand your system. Find the right setting.

A 24-field worksheet for identifying the system, collecting the right values and verifying the result.

Start with the full model numbers and a system diagram. Gather each value from the applicable equipment label, manual, approved design or commissioning record. Keep the source beside the value so another installer can understand the decision. An unknown value is a reason to check the documentation, not to copy a number from a different installation.

Use the worksheet as a preparation checklist. Some fields will not apply to your equipment: a grid-only PV inverter, an SPF off-grid inverter and an AURA balcony system do not share one setup sequence. Follow the exact product guide for the physical work and the order of switching devices on or off.

After configuration, reopen the saved settings and record what the system actually does under normal conditions. Ask the installer to demonstrate the supported charging, export and backup functions for your installation. Add tariff optimisation or external control only after the basic measurements and operating modes are understood.

Setup inputs

Exact inverter model

Where it is used

Equipment label and commissioning record

What to enter or collect

Record the complete model, suffix, power rating, region and phase arrangement.

Why it matters

SPH, SPF, MIN, MOD and SPM names cover different hardware and control systems.

Firmware versions

Where it is used

Device information

What to enter or collect

Record inverter, BMS and logger versions before changing settings.

Why it matters

A menu or supported integration may differ between revisions.

Operating purpose

Where it is used

System design

What to enter or collect

Record self-consumption, backup, off-grid supply or a supported balcony application.

Why it matters

The required equipment and tests follow the actual purpose.

System diagram

Where it is used

Installer handover

What to enter or collect

Identify grid input, PV, battery, backup output, meters and any generator.

Why it matters

A labelled diagram prevents confusing the grid port with a backup or auxiliary port.

Country and grid profile

Where it is used

Installer commissioning

What to enter or collect

Use the approved profile for the connection location and exact inverter.

Why it matters

Grid protection must follow local requirements; it is not an optimisation setting.

Battery family and controller

Where it is used

Battery label and compatibility documentation

What to enter or collect

Record every module, controller or power module, plus the approved inverter pairing.

Why it matters

Matching a brand or nominal voltage does not establish compatibility.

Battery configuration

Where it is used

Battery installation record

What to enter or collect

Record the installed module count and permitted arrangement.

Why it matters

The battery system limits depend on the assembled system.

Battery capacity

Where it is used

Battery record and supported app fields

What to enter or collect

Use the stated units and distinguish nominal energy from usable energy.

Why it matters

Ah and kWh are different quantities; a system screen may use either.

Battery communication

Where it is used

Inverter and BMS commissioning

What to enter or collect

Confirm the specified CAN or RS485 interface, protocol and cable for both endpoints.

Why it matters

An RJ45 connector alone does not identify the correct pinout.

Battery addresses and termination

Where it is used

Battery installation manual

What to enter or collect

Record the documented module addressing and termination arrangement.

Why it matters

Communication failures may arise even when power connections appear correct.

Battery type or control mode

Where it is used

Applicable inverter settings

What to enter or collect

Choose the supported managed-battery option or documented charging method.

Why it matters

A generic preset cannot establish a supported lithium integration.

Charge limits

Where it is used

Inverter or battery settings where supported

What to enter or collect

Record approved current and voltage limits, their units, and whether the BMS governs them.

Why it matters

Requested limits remain subject to battery, inverter and installation constraints.

Discharge limits

Where it is used

Battery or inverter control

What to enter or collect

Record permitted discharge limits and the source of each value.

Why it matters

Rated inverter output is not a statement of available battery power.

Operating reserve

Where it is used

Applicable storage mode

What to enter or collect

Record the reserve setting, purpose and which operating mode it affects.

Why it matters

A normal operating reserve and a protective battery shutdown serve different purposes.

Time schedules

Where it is used

Supported storage control

What to enter or collect

Record start and end times, timezone, intended priority and permitted grid charging.

Why it matters

A correct schedule at the wrong system time produces unexpected behaviour.

Energy meter or CT model

Where it is used

Installer record

What to enter or collect

Record the approved meter or CT, its location and communication interface.

Why it matters

The controller needs the correct measurement at the correct point.

Meter direction and phase assignment

Where it is used

Commissioning test

What to enter or collect

Have the installer verify phase mapping and import/export direction under known loads.

Why it matters

Incorrect measurements can lead to incorrect control decisions.

Export policy

Where it is used

Approved system design and supported export menu

What to enter or collect

Record permitted export, the selected control equipment and the applicable limit.

Why it matters

A configured target needs a functioning measurement and control loop.

PV string design

Where it is used

PV design documentation

What to enter or collect

Record module data, series and parallel counts, tracker allocation and temperature design assumptions.

Why it matters

Each string must suit the exact inverter input limits.

AC source or generator

Where it is used

SPF or supported input design

What to enter or collect

Record the source type, permitted supply capacity and documented acceptance requirements.

Why it matters

A generator rating alone does not prove that an inverter will accept its output.

Backup loads

Where it is used

Backup circuit schedule

What to enter or collect

List the backed-up circuits and their continuous and starting requirements.

Why it matters

Backup output and ordinary grid-connected output can have different limits.

Backup hardware and transfer

Where it is used

Exact inverter and accessory manuals

What to enter or collect

Record any required transfer unit, interface or output configuration.

Why it matters

Battery-ready capability does not automatically provide a functioning backup circuit.

Logger and network

Where it is used

Monitoring setup

What to enter or collect

Record the logger model, relevant app, account owner and network requirements.

Why it matters

Monitoring hardware and apps are product-specific.

Verification and handover

Where it is used

Commissioning record

What to enter or collect

Keep the final configuration, observed power flows, alarm history and documented test results.

Why it matters

A saved value should be checked against the resulting behaviour.

What to check or record

1. Confirm the exact family before choosing a setup guide.
2. Record values together with their units and source.
3. Keep protective settings separate from operating preferences.
4. Retain a dated configuration and commissioning record.

Read the complete model suffix before selecting a wiring diagram or settings guide.

Growatt uses closely related names for different products. SPH 3000–6000TL BL-UP is a single-phase, low-voltage battery family; SPH 4000–10000TL3 BH-UP uses high-voltage batteries and a three-phase AC system. XH products are described separately as battery-ready inverters.

Photograph the nameplate, including every suffix and regional marking, and record the installed firmware. Use that record to choose the manual. A screenshot headed only “Growatt settings” is insufficient to establish which fields, accessories or operating behaviour apply to your installation.

What to check or record

1. Match the complete nameplate, not just the kW rating.
2. Keep the regional version and manual revision together.
3. Check the battery and transfer equipment separately.

It describes a route to a supported storage system; a battery and backup function are separate requirements.

Growatt describes the MOD XH as usable first in a grid-connected solar installation and later with a compatible battery system. The battery interface is useful for an upgrade, but does not mean a battery, power module, meter or transfer box is already installed.

Before ordering an expansion, ask for an itemised configuration tied to the existing serial number and firmware. Include battery modules, the matching controller, cables and any required metering. Treat the desired outage behaviour as a separate question in that specification.

What to check or record

1. Record the installed inverter's exact XH variant.
2. Check the battery controller and cable list.
3. Specify whether storage, backup or both are required.

Backup support depends on the hardware variant and the approved battery and SYN combination.

The MOD XH manual distinguishes backup-capable units marked BP. Its documented backup configuration combines the appropriate inverter, compatible battery system and SYN transfer equipment. A MOD label or an installed battery alone does not establish backup capability.

Use the current configuration instructions for the exact generation: different SYN models and battery power modules exist. Have the installer identify the circuits that remain powered, the available output and the transfer behaviour, then demonstrate that arrangement during handover.

What to check or record

1. Confirm BP or other explicitly documented backup capability.
2. Match the SYN model and battery power module.
3. Record the backed-up circuits and tested load.

The backup output supplies the circuits actually connected through the approved backup design.

SPH BL-UP and BH-UP families have documented backup arrangements, but their AC systems and battery architectures differ. The connection drawing separates the grid connection from the EPS or backup load connection. Ordinary house circuits do not become backup circuits simply because the battery is full.

Ask the installer to label the supported circuits and provide a load list. Include starting loads such as pumps or refrigerators. Test only through the agreed commissioning procedure; the purpose is to establish what the installed system can run, including what happens when its reserve is exhausted.

What to check or record

1. Use the matching single- or three-phase drawing.
2. Identify the EPS circuits on the installation drawing.
3. Check the backup rating separately from the on-grid rating.

On the documented MOD XH mode, solar supplies loads before charging the battery and exporting surplus.

In the MOD XH manual, Load First prioritises local loads, then battery charging, then export. When solar cannot supply the load, battery discharge can help until its configured cutoff or another limit intervenes. Grid charging is a separate control, so the mode name alone does not explain every flow.

To assess a system, collect one simultaneous snapshot of PV, household load, battery power, grid power and active mode. That is more useful than comparing values captured at different times. Also record any enabled charge schedule or external controller.

What to check or record

1. Check active mode and schedules together.
2. Record battery reserve and available discharge power.
3. Compare readings from the same time.

Charging priority and permission to use grid energy are separate settings.

Battery First prioritises battery charging in the documented XH operating modes. Taking additional energy from the grid requires the corresponding grid-charge permission and applicable time settings. Without that permission, selecting the mode does not itself authorise grid charging.

Define the outcome before changing anything: solar charging priority, an off-peak top-up, or keeping energy for an outage. Record the intended start, finish and stopping SOC. After saving, read the settings back and check power flow during the actual charging window.

What to check or record

1. Verify grid-charge enable separately.
2. Check the target SOC and charge-power limit.
3. Confirm the time window is active.

Do not interpret the label as a simple preference for buying electricity.

In Growatt's documented XH operating modes, Grid First is associated with supplying the grid and can use battery energy. It is different from selecting utility power as the first source on an off-grid inverter. Treat similar labels on different product families as separate functions.

If your aim is to preserve the battery or buy cheap energy, write that objective down and match it to the exact manual. Before enabling an export strategy, verify export permission and the battery stopping condition. Observe the first scheduled period rather than leaving an unfamiliar strategy unattended.

What to check or record

1. Identify the exact family before interpreting the label.
2. Check whether battery export is intended.
3. Review export limits and stopping SOC.

Use the working solar charge as a clue and check the timed AC-charge path.

For SPH BL-UP, Growatt documents an AC CHG enable setting in addition to the priority period. A valid solar-charging session does not prove that AC charging is enabled or that the overnight period is being applied.

Compare the intended schedule with the inverter's clock and the settings read back from the device. Record whether the battery is below the charge target and whether any alarm is present. If an external tariff service also writes settings, compare its activity with the missed charge rather than changing several controls at once.

What to check or record

1. Record the failed time window and local clock.
2. Read back AC-charge permission and target.
3. Check other controllers and battery alarms.

Check the device clock, period enable flags and the boundaries of each active period.

The TL-XH operating-mode guide describes enabled priority periods and requires ordered, non-overlapping periods in that documented implementation. The available controls differ by inverter and firmware; do not assume an SPH screenshot uses the same schedule model.

Make a simple daily timeline with each period's start, end, mode, target and power limit. Compare it with the actual clock shown by the system. Observe transitions at the boundaries, including midnight and daylight-saving changes. Record what happens outside the scheduled periods as well as inside them.

What to check or record

1. Read the device's actual date and time.
2. Check that each intended period is enabled.
3. Resolve overlaps using the exact model instructions.

A high SOC does not prove that discharge is currently permitted or sufficient.

Investigate the active operating strategy before assuming a fault. A charging-priority period, an intended reserve or an export strategy may be inconsistent with the behaviour you expect. Also compare the load with the battery's available output rather than its stored energy alone.

Capture the inverter state, battery state, current schedule and simultaneous power flows while the symptom is present. Separate a short response to a load change from sustained import. This record lets the installer distinguish a control decision, a measurement issue and a battery restriction without guessing from a single SOC value.

What to check or record

1. Record whether import is brief or sustained.
2. Capture active mode and any charge period.
3. Compare load demand with available battery power.

The available storage power is a system limit, not just the number printed on the inverter.

Growatt's battery systems specify their own power capabilities, and configuration depends on the number of modules and the power module. The inverter rating does not establish what every smaller battery arrangement can deliver.

Compare four records: the inverter rating, the installed battery configuration, the user-entered limit and the live operating state. Add SOC, temperature and any warning at the same timestamp. A larger energy capacity may change useful runtime without removing every power bottleneck, so confirm the intended outcome before buying more modules.

What to check or record

1. Record installed module count and power-module model.
2. Check W or kW separately from kWh.
3. Compare the configured limit with live restrictions.

Running energy and starting power are different requirements.

A backup design must satisfy the inverter, battery and transfer equipment limits. Growatt's MOD backup documentation explicitly ties output to the battery configuration as well as the inverter. A battery with enough stored kWh may still be unable to start a particular load.

Make a list of the equipment that was running when the event occurred, including motors, compressors and heating loads. Preserve the alarm record. Ask the installer to review simultaneous and starting demand, then repeat a controlled test with the agreed essential loads. Repeatedly restarting an overloaded system does not establish a suitable design.

What to check or record

1. Save the exact alarm and event time.
2. List all simultaneous backup loads.
3. Review motor starting demand with the installer.

Battery-ready products can serve a grid-connected solar installation, subject to their model instructions.

Growatt's MOD XH introduction describes starting with a conventional grid-connected PV system and adding storage later. This makes the initial operating state different from a complete battery-and-backup installation.

At commissioning, document which functions are actually present. Avoid trying to clear an absent-battery indication by selecting an arbitrary battery type. When storage is added later, revisit the equipment list, metering, firmware compatibility and operating strategy instead of assuming the old solar-only configuration is complete.

What to check or record

1. Use the exact inverter's solar-only instructions.
2. Record installed and deferred equipment.
3. Recommission storage after the battery upgrade.

Choose the supported system architecture before purchasing components.

Growatt lists both hybrid and AC-coupled storage products. Those are distinct routes, and the right choice depends on the existing PV inverter, battery system, metering arrangement and required backup behaviour.

Provide the installer with the existing single-line diagram and inverter details. Ask for a drawing showing where every generator and load is measured and which devices operate during a grid failure. Do not infer that an existing grid-tied solar inverter will continue running in an islanded backup system.

What to check or record

1. Record the existing PV inverter and phase arrangement.
2. Confirm the supported AC- or DC-coupled design.
3. Specify how solar behaves during an outage.

It needs a view of power at the control point to manage self-consumption and export.

Growatt describes its smart meter as a measurement and communication device for export limitation and self-consumption control. Reading inverter output alone cannot tell the controller how much electricity the whole property is importing or exporting.

Identify the meter's position on the drawing. A meter measuring only one branch cannot be assumed to represent every household load. During handover, request a demonstration that an ordinary load change appears correctly in the grid measurement before using that measurement for an export target.

What to check or record

1. Locate the measurement point on the single-line diagram.
2. Confirm the meter model matches the inverter.
3. Check that relevant loads and generators are included.

Check measurement direction and placement before changing the operating mode.

A reversed or misplaced measurement can lead the controller to interpret the power flow incorrectly. Use the exact CT or meter installation diagram: the correct orientation is defined by the marked device and its documented grid/load arrangement, not by a universal arrow rule.

Ask the installer to compare the reading with a known import condition, then with a known generation condition if available. Keep a timestamped record of the result. Do not open a live distribution board or move CT wiring as an experimental user adjustment.

What to check or record

1. Compare measured direction with a known load condition.
2. Use the exact CT's markings and diagram.
3. Have an installer verify placement and connections.

Each current measurement must correspond to the correct voltage phase.

Three-phase meter installation uses phase-specific connections. A plausible overall total is insufficient proof that each phase is measured correctly. Phase order, CT assignment and measurement direction should be checked together against the installed meter's diagram.

A useful commissioning record lists the phase readings before and after a known load is switched. Ask the installer to reconcile those readings with the circuit assignment. This is especially useful when the controller behaves strangely only under unbalanced household loads.

What to check or record

1. Record L1, L2 and L3 separately.
2. Match every CT with its voltage reference.
3. Verify the meter against the actual circuit layout.

A familiar connector does not establish the electrical interface or pinout.

Growatt smart meters communicate with the inverter over RS485. The meter and inverter instructions define the terminals, address and communication settings; a network-style plug does not make the connection an Ethernet network.

Record both device models before replacing a cable. Ask the installer to verify the documented pair and pin assignment, cable route and required termination. Keep those details with the commissioning record so a later router or logger change is not confused with the separate energy-meter link.

What to check or record

1. Identify the meter and inverter communication ports.
2. Use the documented pinout and settings.
3. Keep meter wiring separate from router troubleshooting.

First distinguish a control target, measurement timing and sustained unwanted export.

Export control depends on a correctly installed compatible meter and working communication. A target setting by itself is not a commissioning test. Observe actual grid flow while loads and PV generation change, using readings with known update intervals.

Record whether the event is a brief change or a persistent flow, and compare the inverter display with the site's meter over a meaningful period. If export must meet a contractual limit, have the installer verify the complete control arrangement and the required acceptance criteria. Do not treat a cloud chart's rounded zero as proof.

What to check or record

1. Verify meter communication and direction first.
2. Record duration and size of unwanted export.
3. Test the actual installation against its required limit.

The screen's unit and reference rating determine what the number means.

The MOD XH manual includes export limits expressed as a percentage of inverter rated power. Other products or interfaces may present different units. Entering a desired watt value into a percentage field can therefore produce a completely different request.

Write down the exact field label, unit, allowed range and reference rating before changing it. If conversion is required, calculate it explicitly and have the installer confirm it. Save the value, read it back, and verify measured export under appropriate conditions; a successful save confirms only that a command was accepted.

What to check or record

1. Read the unit beside the field.
2. Identify the rating used as the percentage base.
3. Verify the resulting measured export.

Three-phase totals and phase-by-phase power flows are different measurements.

A site can import on one phase while exporting on another. The MOD XH documentation distinguishes standard and phase-level export behaviour. Which arrangement is required depends on the configured system and the site's connection conditions.

Use a phase table rather than one total when checking the installation. Record each phase's import/export sign and the combined total under an uneven load. Ask the installer to explain which quantity the controller is limiting and how the electricity meter treats those flows.

What to check or record

1. Record individual phase values and their sum.
2. Check the relevant phase-level control setting.
3. Confirm the site's required export treatment.

A meter warning needs communication evidence, not an arbitrary replacement sensor setting.

Growatt's inverter FAQ associates warning 401 with a meter fault, but always confirm the code in the manual for the exact model. Capture the complete message rather than relying on the number alone.

Record the meter model, its display state and whether the inverter still shows changing grid readings. Include photographs already available from the installation record and the event time. Have the installer check power and communications against the correct diagram. Disabling the meter requirement can also disable the measurement needed for export control.

What to check or record

1. Capture the complete warning and model.
2. Check whether readings are live or frozen.
3. Have the meter supply and communication checked.

Have the cause and approved grid profile checked before changing protection settings.

Growatt explains that AC voltage or frequency warnings arise when the measured supply is outside the range associated with the selected grid requirements. An alarm is not evidence that the protection threshold should be widened.

Collect the exact message, time, operating power and available voltage/frequency readings. The installer can compare the configuration with the approved local profile and investigate the supply or installation. Keep repeated midday events separate from isolated outages because their circumstances may differ.

What to check or record

1. Record the active country/grid profile.
2. Capture readings at the alarm time.
3. Use qualified checks for supply and installation issues.

Low-voltage and high-voltage storage systems are different architectures.

Growatt identifies SPH BL-UP as a low-voltage battery family and SPH BH-UP as a high-voltage family. Its configuration checklist pairs those architectures with different battery arrangements and controllers.

Do not select a battery by kWh or connector shape alone. Confirm the complete inverter–battery–controller combination in the current configuration documents. Record module quantity, required cables and firmware as part of the same check. A component that works in another Growatt installation is not sufficient evidence of compatibility.

What to check or record

1. Confirm LV or HV from the exact model documentation.
2. Check the approved complete combination.
3. Include the controller and cables in the parts list.

The family name is only the start of the compatibility check.

Growatt lists ARK XH and APX HV options for relevant MIN/MOD XH products, while its configuration checklist distinguishes ARK LV, ARK HV and their controller arrangements. The labels do not describe one universal battery that can be moved between systems.

Check the exact battery generation and power controller against the exact inverter. Keep evidence for the module count and any required firmware. If replacing an existing system, compare both complete configurations before ordering; reusing the old controller or cable set should be an explicit supported choice.

What to check or record

1. Record ARK LV, ARK HV, ARK XH or APX exactly.
2. Match the controller part number.
3. Confirm the approved module count and firmware.

The power module is part of the inverter pairing, not just a lid for the battery stack.

The APX download page separates S0 documentation for MIN-XH from S1/S2 material for MOD-XH(BP) and MID-XH. Growatt also lists APX HV Battery 2.0 as a separate generation. Use the full system designation when checking compatibility.

Record the label on the power module and on every battery module. Ask for the approved configuration that names those components together with your inverter. Do not choose a module from a photograph or assume that the newest generation supports every older inverter without qualification.

What to check or record

1. Photograph power-module and battery labels.
2. Use the matching system-generation manual.
3. Confirm the inverter pairing in writing.

Expansion rules vary by battery family and generation.

APX is designed around module-level energy optimisation and supports documented expansion flexibility. That must not be generalised to every ARK configuration: the ARK XH-A1 manual has specific matching and installation conditions.

Before ordering, gather the existing module models, ages, serial numbers, firmware and present configuration. Have the installer confirm permitted mixing, capacity, state-of-charge preparation and physical layout for that exact revision. An expansion is a recommissioning task, with communication and available power checked after the change.

What to check or record

1. Check the rules for the installed generation.
2. Confirm module and controller compatibility.
3. Recheck detected modules and operation after expansion.

The inverter cannot rely on the battery's expected communication data.

Growatt's storage FAQ describes BMS communication faults in lithium operation. Battery power cables and the communication connection are separate paths; the presence of battery voltage does not prove that the data link is working.

Collect the full warning, battery/controller model and any recent changes. Ask the installer to verify the approved protocol, cable pinout, ports and module communication chain. Avoid switching to a generic battery mode to suppress the message: that can change the way the system obtains operating limits.

What to check or record

1. Record the complete message and battery status.
2. Distinguish the DC power path from the data link.
3. Verify the approved protocol and cable.

Separate a fulfilled charging target from a warning, a limit or a control setting.

The APX manuals distinguish charge cutoff status from faults and protection conditions. A battery at its configured upper target may legitimately stop accepting charge. The question is whether its status explains the observed behaviour.

Capture SOC, battery temperature, requested charge power, actual charge power and all warnings at one moment. Then compare solar charging and scheduled grid charging separately. If the battery is below target, the record helps support determine whether the restriction comes from the battery, the inverter or the chosen operating strategy.

What to check or record

1. Check the target and current SOC.
2. Save battery warnings and temperature.
3. Compare the separate solar and grid charge paths.

A normal reserve and a protective stop serve different purposes.

The APX manuals describe a non-discharge status when the configured discharge cutoff is reached. They also describe protective battery states. A displayed percentage above zero does not mean all remaining stored energy is available for ordinary household use.

Record the active reserve/cutoff and the battery's message before changing anything. Compare the system's intended everyday reserve with the backup plan. If the battery stops well above the expected target, capture live limits and alarms rather than repeatedly lowering the target.

What to check or record

1. Compare displayed SOC with the active cutoff.
2. Check for protection or communication warnings.
3. Keep backup objectives separate from fault diagnosis.

Treat SOC as a reported estimate and investigate its context.

A battery's percentage should be considered alongside measured energy, operating status and the battery system's own readings. An abrupt change alone does not prove that the same amount of energy was physically gained or lost at that moment.

Save a graph covering the event and note any restart, firmware change, newly added module or long idle period. Compare battery and cloud timestamps. Ask support whether the exact system needs a documented calibration procedure; do not invent a deep-discharge cycle or force an overcharge to make the percentage look right.

What to check or record

1. Record timestamps before and after the change.
2. Compare local battery and cloud readings.
3. Use only the model's approved calibration procedure.

The installation's environmental conditions and battery protection affect available power.

Growatt documents temperature protection and possible output reduction for APX systems. Its newer APX 2.0 has a different environmental design, so do not transfer a temperature claim from that generation to an older stack.

Record the battery's reported temperature, actual power and warning state during the event. Compare the installation location with its ventilation, shade and clearance requirements. Have persistent derating or abnormal heating investigated; raising a current setting does not remove a thermal restriction.

What to check or record

1. Use the installed generation's temperature limits.
2. Keep specified ventilation and clearances unobstructed.
3. Record temperature and power together.

Nominal capacity is not a promise of that many AC kilowatt-hours at the socket.

The useful operating window depends on the battery's permitted range and the reserve you keep. Conversion losses and system consumption also affect energy delivered to loads. Distinguish battery-side measurements from AC-side energy when comparing reports.

For planning, start with the documented usable capacity, subtract the reserve that is actually unavailable for the intended use, and allow for the relevant system losses. Measure a representative operating period and record its loads. Runtime is an estimate, particularly when heating, pumps or other intermittent loads are involved.

What to check or record

1. Use usable capacity and reserve, not nominal kWh alone.
2. Compare measurements on the same side of the system.
3. Record actual loads over a representative period.

Use the sequence for the exact inverter and battery combination.

Growatt's inverter FAQ explicitly limits its example restart sequence for a particular fault to MIN/MOD XH with ARK XH. This is a useful reminder that an internet restart recipe is not universal. Different batteries and inverters have different switching and waiting requirements.

Keep the matching manuals with the installation record. When support requests a restart, confirm the applicable sequence and who should perform it. Save alarms and readings first, because cycling power may remove useful diagnostic context. Internal work and electrical testing belong with qualified personnel.

What to check or record

1. Identify the complete system before restarting.
2. Preserve diagnostic evidence first.
3. Follow the exact manual's sequence and waiting times.

Establish equipment identity, measurement and battery communication before optimising energy flows.

Begin with the approved system drawing and complete equipment labels. The installer should confirm the physical installation and applicable grid profile using the correct manuals. Keep the battery configuration and any transfer equipment on the same record.

Next establish reliable measurements and battery communication. Record the initial operating state and alarms before choosing the energy strategy. Start with a clearly defined goal, such as normal self-consumption, and verify the power flows under ordinary loads.

Finally test supported backup behaviour through the agreed procedure, save the configuration and provide a handover record. Introduce additional schedules or external optimisation only after the basic behaviour is understood, so later changes can be traced.

Setup inputs

Equipment and firmware

Where it is used

Nameplates and device information

What to enter or collect

Full inverter, battery, controller, meter and SYN model codes with versions.

Why it matters

Similar family names can have different capabilities.

Grid arrangement

Where it is used

Approved design and commissioning tool

What to enter or collect

Country/profile and actual phase arrangement verified by the installer.

Why it matters

The installation must use the applicable protection configuration.

Operating objective

Where it is used

Operating-mode controls

What to enter or collect

The required self-consumption, charging or backup strategy.

Why it matters

A mode should follow the intended outcome.

Handover evidence

Where it is used

System record

What to enter or collect

Read-back settings, initial alarms, power-flow observations and test results.

Why it matters

Later troubleshooting needs a known starting point.

What to check or record

1. Confirm exact models and firmware.
2. Validate grid measurement and battery status.
3. Read saved settings back.
4. Record normal operation and supported backup tests.

Use an observed power-flow check before relying on automatic control.

Ask the installer to identify the meter or CT arrangement on the approved drawing and confirm that it measures the relevant grid connection. The exact meter manual governs connections, direction, phase assignment and communication.

With the installation safe and operating, compare the grid reading with a known load change. On three-phase systems, record the individual phase values as well as the total. Investigate reversed, static or implausible readings before setting the export target.

Enter the approved target in the units used by that interface, read it back and observe the system through representative load and generation changes. Retain the result with the commissioning record. The target and the demonstrated site behaviour should be recorded separately.

Setup inputs

Meter model and position

Where it is used

Meter label and system drawing

What to enter or collect

Exact meter/CT model and the circuit it measures.

Why it matters

The controller can only respond to what its sensor sees.

Direction and phases

Where it is used

Commissioning measurement

What to enter or collect

Known import/export observations for the total and relevant phases.

Why it matters

Incorrect sign or phase mapping misrepresents the site.

Export target and unit

Where it is used

Model-specific export control

What to enter or collect

Approved target with W, kW or percent explicitly recorded.

Why it matters

A number without a unit is ambiguous.

Acceptance observation

Where it is used

Handover record

What to enter or collect

Power readings, operating conditions and test duration.

Why it matters

A saved setting alone is not a functional test.

What to check or record

1. Confirm measurement location and compatible meter.
2. Check live communication and sign.
3. Check phases where relevant.
4. Verify the observed result after saving.

Translate the intended daily behaviour into explicit periods, targets and permissions.

Write a daily timeline first: when the battery should charge, when it may support loads, and how much reserve is needed. Match those objectives to the mode definitions for the exact inverter. In particular, do not assume Grid First means buying grid electricity.

For a documented XH or SPH charging period, inspect the period enable flag, start and end, charge target, power limit and separate AC/grid-charge permission. Confirm the device clock and the model's rules for overlapping or midnight-spanning periods.

Read the settings back after saving. Observe the first period while it is active and again after it ends. If another app or service changes the configuration, record that controller and its intended role so two schedules do not silently compete.

Setup inputs

Time basis

Where it is used

Device clock and schedule screen

What to enter or collect

Actual date/time and local tariff period.

Why it matters

The correct plan at the wrong time gives the wrong result.

Period and mode

Where it is used

Model-specific time-of-use controls

What to enter or collect

Enabled start/end period and documented operating mode.

Why it matters

A time field may exist without its period being enabled.

Charge target and rate

Where it is used

Battery/priority controls

What to enter or collect

Appropriate SOC target and power limit within system constraints.

Why it matters

The target and rate define different aspects of charging.

Grid-charge permission

Where it is used

AC/grid charging control

What to enter or collect

The intended permission, consistent with the installation.

Why it matters

Charging priority alone does not establish grid charging.

What to check or record

1. Record a timeline before editing.
2. Verify AC-charge permission separately.
3. Confirm time and enable flags.
4. Observe both the active period and its end.

Verify the complete inverter, battery and controller combination.

Start with photographs of the existing inverter, battery modules and controller labels. Record the number of modules, firmware and the existing connection arrangement. Match that inventory to the current configuration material for the installed generation.

Specify the desired improvement: more runtime, more charge/discharge power or backup capability. These are different outcomes. Ask for an itemised proposal naming the exact modules, controller, cables, bases or brackets and any required transfer equipment.

Before installation, confirm the expansion and module-matching conditions in the relevant battery manual. After the change, have the installer verify detected modules, communication, alarms and operating power. Update the equipment record so future support does not work from the old configuration.

Setup inputs

Existing configuration

Where it is used

Equipment labels and system record

What to enter or collect

Inverter, battery and power-module models, module count and firmware.

Why it matters

Compatibility applies to the complete combination.

Expansion objective

Where it is used

Design brief

What to enter or collect

Required runtime, power or backup behaviour.

Why it matters

More kWh does not automatically solve every limitation.

Permitted module matching

Where it is used

Exact battery manual

What to enter or collect

Approved generation, batch/age and preparation conditions.

Why it matters

ARK and APX expansion rules are not universal.

Final component list

Where it is used

Installer proposal

What to enter or collect

Exact modules, controller, cables, supports and other necessary equipment.

Why it matters

A battery module alone is not always a complete system.

What to check or record

1. Collect complete model labels and existing module count.
2. State the desired energy and power outcome.
3. Check generation-specific expansion rules.
4. Update the record after recommissioning.

Prepare the equipment record, confirm battery control, choose priorities and verify ordinary operation before optimisation.

1. Identify the complete inverter model, battery system and supported arrangement. Have the installer complete wiring, isolation, protection and environmental checks using the exact manuals. Keep the approved diagram and startup procedure beside the system record.

2. Establish battery operation before adjusting convenience features. Record the intended communication or voltage-control method and confirm that the displayed battery information is credible. Resolve active battery or inverter alarms before proceeding.

3. Choose how the loads should be supplied and which sources may charge. Record the meaning and unit of every threshold. Verify a modest ordinary load, charging from each intended source, and the required backup behaviour under the installer's supervision.

4. Save a baseline with screenshots and measured results. Add time schedules and other optimisation only after that baseline is understood. When a later change causes a problem, compare with this record rather than reconstructing settings from memory.

Setup inputs

Full model and revision

Where it is used

Rating label and information screen

What to enter or collect

Inverter suffix, battery models and firmware versions.

Why it matters

Determines the correct manual and available functions.

Battery control method

Where it is used

Battery settings

What to enter or collect

The approved communicating or voltage-controlled arrangement.

Why it matters

Determines who supplies charge limits and battery information.

Output priority

Where it is used

Exact-model output-source menu

What to enter or collect

The intended order of solar, battery and utility use.

Why it matters

Controls how loads are supplied.

Charger priority

Where it is used

Exact-model charger-source menu

What to enter or collect

Permitted charging sources and any supported schedule.

Why it matters

Is separate from output-source selection.

Transfer and cutoff thresholds

Where it is used

Battery and source-transfer settings

What to enter or collect

Supported values with the displayed units and battery/design rationale.

Why it matters

Return thresholds and protective cutoff serve different purposes.

Verification record

Where it is used

Commissioning handover

What to enter or collect

Normal-load, charging, outage and restoration results.

Why it matters

Creates evidence for later troubleshooting.

What to check or record

1. Complete the equipment record.
2. Confirm battery control and normal measurements.
3. Test each intended energy path.
4. Save settings and test results.

Match the entire model name, regional version and revision before using a setting table.

SPF is a product family, not a single electrical specification. Growatt lists transformerless ES and TL HVM products alongside transformer-based T HVM models. ES, ES Lite, ES Plus, HVM, HVM-Pro, HVM-MPV and HVM-G2 must not be treated as interchangeable.

Photograph the rating label and record every suffix. Keep the matching manual with your configuration record. When an online explanation mentions a program number, compare its written function and available choices with your own screen before entering anything. A different-looking menu is a reason to check the revision, not to guess the nearest number.

What to check or record

1. Record the complete model and firmware.
2. Check AC and battery voltage variants.
3. Use the document's validity section.

Their grid roles and connection arrangements differ.

Growatt classifies SPF products as off-grid storage inverters and SPM TL-HU products as hybrids. An AC input that accepts utility power does not by itself mean an inverter can export electricity to the public grid.

Start with the intended energy path: isolated loads with an AC supply, or a grid-connected system that measures household import and export. Ask the installer to mark those paths on the system drawing. Do not use an SPF priority-mode recipe as an SPM export-control configuration or connect an isolated output into a live household supply.

What to check or record

1. Identify the grid connection role.
2. Label input and load circuits.
3. Check the exact approved system diagram.

It provides dedicated grid and generator inputs with an integrated transfer function.

The SPF 6000 ES Plus product documentation specifies separate grid and generator AC inputs. This is a concrete hardware feature; it should not be inferred for another SPF simply because that unit can accept either a generator or utility supply.

Have the installation record identify which source is connected to each terminal group and how the source is protected and isolated. During troubleshooting, record the indicated active source rather than assuming that a running generator is feeding the charger. Source availability, source selection and permission to charge are separate questions.

What to check or record

1. Verify terminal labels against the Plus manual.
2. Record the active source shown on the display.
3. Check charging permissions for that source.

No. The full TL, T, G2 and MPV designation matters.

Growatt describes SPF 2000–5000TL HVM as transformerless, while SPF 4–12KT HVM-MPV and SPF 3000–6000T HVM-G2 use a transformer. The manufacturer also lists substantially different PV voltage classes across these families.

Consequently, neither a panel string design nor a motor-load recommendation transfers automatically between units called HVM. Compare the exact datasheets in a small equipment table: PV maximum voltage, MPPT range, battery voltage, continuous output and permitted starting load. Replace the design assumptions when replacing the inverter, even if its advertised wattage is unchanged.

What to check or record

1. Read the entire model suffix.
2. Recheck PV design for a replacement inverter.
3. Assess load starting demand separately.

Do not transfer Pro or Plus capabilities to a Lite.

The current Growatt SPF 6000 ES Lite page includes Lite/Pro information and expressly associates its parallel-operation statement with the SPF 6000ES Pro. That shared page is not sufficient evidence that an installed Lite supports the same arrangement.

Before purchasing expansion hardware, ask for confirmation against the complete model and serial-number revision. The answer must cover compatible units, required communication hardware, battery arrangement and the supported phase configuration. A matching enclosure or nominal power is not proof of parallel compatibility.

What to check or record

1. Confirm Lite versus Pro on the label.
2. Obtain the exact parallel instructions.
3. Do not connect outputs together without an approved design.

On the documented SPF ES version, the order of battery and utility support differs.

The SPF 3500/5000 ES manual describes SBU as solar first with battery support before utility, subject to the configured transfer threshold. SUB uses solar with utility support and reserves battery contribution for loss of utility. Check whether those choices exist in your installed firmware.

Choose the intended outcome first: routine battery cycling or retaining stored energy while mains is available. Then verify a daytime and evening example on the live display. Record the mode, battery percentage and active energy arrows together; the mode label alone does not show whether a threshold or protection is currently controlling operation.

What to check or record

1. Check the exact manual's mode description.
2. Observe behaviour with and without PV.
3. Review the applicable return-to-utility threshold.

One decides how loads are supplied; the other decides which sources may charge.

On SPF ES, output-source priority and charger-source priority are distinct controls. Selecting a solar-oriented output mode is not the same operation as allowing or preventing utility charging.

Write two sentences before configuration: 'My loads should normally use…' and 'My battery may charge from…'. Match each statement to its own setting. If the observed result seems contradictory, record both settings and the current operating state. This often makes a support request more useful than a screenshot of only the battery page.

What to check or record

1. Record both priority choices.
2. Include the current line/battery state.
3. Check any time restrictions separately.

Check AC acceptance, charging permission, battery state and available limits.

An AC voltage on the screen is only one part of the diagnosis. Capture whether the inverter is accepting that supply, which charging source is enabled, and whether the battery is asking for or allowing charge. The SPF ES manual documents different charging behaviour for its operating states.

Compare a moment when charging is expected with a moment when it actually occurs. Note PV power, household load, battery level and any schedule. Change only a documented setting with a clear expected result. Repeatedly switching the PV supply to force charging is not a substitute for establishing why the controller refused it.

What to check or record

1. Photograph the full power-flow screen.
2. Record charger priority and schedule.
3. Include battery alarms and limits.

A running engine does not prove that the AC source is suitable at the inverter.

Generator diagnosis has two stages: first establish that the inverter accepts the source, then examine charging. Have the installer compare measured voltage and frequency under load with the exact inverter's acceptance requirements. A no-load reading cannot show what happens when charging begins.

Collect the generator model, continuous rating, cable arrangement and the time of rejection. Note whether lights flicker or the source drops out only after a large load starts. Do not choose a wider AC acceptance setting simply to hide unstable power; the connected equipment and the approved installation must remain suitable.

What to check or record

1. Record loaded voltage and frequency through the installer.
2. Separate rejection from zero charging.
3. Check the exact generator requirements.

Assess the combined load and charging demand, including how lithium mode controls it.

Treat this as a source-loading investigation. The generator may be supplying loads as well as the charger. Battery charging current is a DC quantity; it is not the same number as the generator's AC current. The active lithium control mode can also affect which charge settings are editable.

Ask the installer to record generator loading before charging, during charging and when a large appliance starts. Keep the battery's permitted current and the source's permitted demand in the same worksheet. Do not fit a larger breaker to stop tripping without reassessing the generator, wiring and protection.

What to check or record

1. Identify AC versus DC units.
2. Log simultaneous appliances.
3. Check which controller sets the active current.

Battery information on screen does not prove that the battery can deliver power.

Separate communication from the power path. A reported battery voltage or percentage may coexist with an open battery protection device, a disabled discharge path or an installation fault. The exact battery and inverter must be checked together.

Record the battery indicators before and after AC removal and whether any load output existed. Give this evidence to the installer along with the wiring diagram. Avoid repeated restart attempts with heavy loads connected. Recovery or wake-up of a protected battery must follow that battery's procedure, rather than applying an arbitrary external voltage.

What to check or record

1. Capture battery and inverter indications together.
2. Record whether discharge is enabled.
3. Use the battery manufacturer's recovery procedure.

Check the approved pairing, protocol, ports and cable mapping as one chain.

A plug that fits the socket does not establish protocol compatibility. On the documented SPF ES version, lithium communication mode requires an appropriate BMS protocol. The battery port, inverter port and cable assignment all have to match the approved integration.

Provide a clear photograph of each connected port and a record of the selected battery and protocol settings. Include the battery's master/address configuration where applicable. If the same cable previously worked, record what changed: firmware, battery count, master unit or inverter replacement. Do not cycle randomly through protocols while connected to a live installation.

What to check or record

1. Confirm the approved battery/inverter pairing.
2. Check both ends of the communication cable.
3. Record protocol and firmware versions.

Only if that operating arrangement is explicitly supported and fully configured.

A voltage-controlled mode and a communicating lithium mode provide different control information. A user-defined selection is not a repair for a broken communication link. The documented SPF ES manual includes different battery choices, but their existence does not approve every battery.

Before changing the mode, obtain the battery manufacturer's requirements for charging, discharge and temperature protection, and the inverter's supported integration. Record what control or monitoring will be lost. If the system was supplied for BMS communication, repair that intended path before considering a different architecture.

What to check or record

1. Check approval for non-communicating operation.
2. Record all required battery limits.
3. Keep battery protection active.

The selected battery-control mode can change the meaning of the field.

The SPF ES manual shows that certain transfer and cutoff settings use percentages when communicating lithium mode is selected. A value previously interpreted as volts must therefore not be copied blindly after changing battery type.

For every threshold, record the field name, displayed unit and purpose. Distinguish return to utility, return to battery and final low-battery cutoff. Review the settings again after a mode change, then observe ordinary operation before relying on backup. The appropriate percentages come from the intended reserve and supported battery behaviour, not another user's screenshot.

What to check or record

1. Read the unit beside every value.
2. Record transfer and cutoff settings separately.
3. Reopen settings after changing battery mode.

Check whether power-saving behaviour is intended for the application.

Some SPF configurations can stop inverter output when a small load is not detected. If a router, clock or small electronic device loses power while larger appliances work, include the power-saving selection in the investigation.

Record which appliance is affected and whether output returns when another ordinary load is switched on. Do not leave an unnecessary heater running as a workaround. Decide whether uninterrupted low-power service is required and have the supported setting adjusted accordingly. Also distinguish a detection issue from an output timer, depleted battery or a genuine protection event.

What to check or record

1. Record the power-saving selection.
2. Check the output schedule.
3. Compare small-load and ordinary-load behaviour.

Include the inverter and all connected equipment in the energy budget.

A household-load display is not necessarily the complete battery energy balance. Inverter operation, communications and connected auxiliary equipment also require energy. A battery percentage change alone cannot quantify the loss accurately.

For a useful overnight comparison, record start and end times, battery energy or current data, load energy and any AC charging. Repeat under similar conditions before concluding that a battery is faulty. Check whether an optional low-load mode is suitable for essential equipment. Keep nominal battery capacity separate from the energy available above the configured reserve.

What to check or record

1. Use an overnight time window.
2. Include inverter and auxiliary consumption.
3. Compare equivalent starting battery conditions.

Starting demand and duration matter as well as steady power.

Growatt highlights transformer-based SPF T HVM families for demanding motor loads. That does not make every motor compatible, and an advertised peak figure is not a continuous rating. Starting behaviour must be assessed against the exact model.

Record the motor's identification plate, how it starts, other simultaneous loads and whether the trip happens immediately or after running. The installer can then distinguish startup demand, sustained overload and a fault in the appliance or wiring. Do not repeatedly retry a stalled motor or bypass the inverter's protection.

What to check or record

1. Record the appliance's starting requirements.
2. Separate instantaneous and delayed trips.
3. Check simultaneous loads.

A supported parallel system is a complete design, not just joined AC outputs.

Growatt publishes parallel capability for particular SPF models. The permitted number and arrangement depend on that model and revision. A new unit must be checked for compatibility with the existing equipment and required communication hardware.

Plan the battery power path, protection, source capacity and phase assignment together. Record firmware and the intended host arrangement before commissioning. After installation, verify each unit's contribution under a suitable test load. If one unit remains idle or a host alarm appears, preserve the readings and have the communication design checked rather than changing phase settings experimentally.

What to check or record

1. Obtain exact model compatibility confirmation.
2. Record firmware and phase assignment.
3. Verify current sharing after commissioning.

Only circuits included in the approved backup arrangement can be expected to operate.

Start with the installation drawing, not the inverter's headline wattage. Identify the backed-up circuits and the power source that remains available during a grid failure. A connected battery is not by itself proof that the whole building has backup.

Arrange an installer-led outage test with representative loads and a record of what should remain powered. Include essential low-power devices and equipment with a high starting demand. Confirm restoration behaviour as well as the outage. A successful test with one lamp does not demonstrate that heating, pumps and cooking loads can all start together.

What to check or record

1. List essential backed-up circuits.
2. Agree the test load beforehand.
3. Record outage and grid-return behaviour.

Use the exact inverter and battery procedure for all connected energy sources.

A power button does not establish electrical isolation. An installation may still have energy from PV, battery, utility and a generator. Growatt's SPF instructions require the relevant sources to be disconnected for maintenance.

Keep a clearly labelled shutdown instruction beside the system, prepared by the installer for the actual switching arrangement. It should identify each isolator and any required discharge waiting period. Use the corresponding startup procedure after work. If the labels or diagram are missing, obtain them before attempting maintenance; the sequence from a different Growatt family may not apply.

What to check or record

1. Identify every energy source.
2. Use labelled isolation instructions.
3. Leave electrical work to a qualified installer.

Cooling and environmental limits must match the installed model.

Environmental protection differs across Growatt products. The presence of a dust-control feature on an SPF ES Plus does not make it suitable for any outdoor location. Check the exact enclosure rating, ambient limits and clearance diagram.

Record ambient conditions when output falls or a temperature alarm occurs. Look for blocked external airflow without opening the enclosure. Follow the manual's cleaning procedure and isolation requirements; do not blow conductive debris into the equipment. If the problem repeats under ordinary conditions, supply the installer with photographs of the location and the event times.

What to check or record

1. Check the exact environmental rating.
2. Keep specified clearances free.
3. Record temperature-related events.

Record the whole indication; the number alone is incomplete.

Growatt's SPF documentation separates warning and fault indications. Similar numbers can appear in different tables, and code meanings differ between product families. Include the exact model, warning/fault state and displayed message in any diagnosis.

Capture the first event rather than only the final shutdown. A photo or brief video can preserve flashing indicators and the sequence of beeps. Also note whether PV, utility or a particular appliance changed at that moment. Clearing the display removes evidence without proving that the cause has been corrected.

What to check or record

1. Record warning versus fault.
2. Capture the full message and LEDs.
3. Use the exact model's code table.

Stop repeated resets and have the affected circuit investigated.

Growatt's off-grid troubleshooting guidance distinguishes load-related problems from inverter hardware problems. That distinction requires suitable electrical checks; it is not established by the wording of an alarm alone.

Switch off affected appliances through their ordinary controls if this can be done safely. Preserve the fault information and tell the installer what was connected when it occurred. Do not open the inverter, bridge a protection device or repeatedly restore power to a suspect circuit. A reset is appropriate only within the model's procedure after the cause is understood.

What to check or record

1. Record connected appliances.
2. Preserve the first alarm.
3. Arrange inspection of repeated faults.

Visible damage or repeated alarms require inspection before normal use.

Growatt's off-grid support guidance recognises surge-related faults as a possible hardware problem. A restart that temporarily clears an alarm does not establish that the installation and its protective devices are undamaged.

Record the event time, alarm and which parts of the system still operate. If there is smell, smoke, water ingress or visible damage, keep clear and have the system made safe. Ask the installer to inspect the appropriate surge-protection and electrical paths. Do not remove an internal protective component to make the inverter run.

What to check or record

1. Check for external signs of damage without opening equipment.
2. Record storm and alarm timing.
3. Have protective devices inspected.

It is a control signal; the generator and interface must be designed to use it.

A dry-contact function is not a power supply for a generator starter. Its operating conditions and contact rating are model-specific. The SPF ES documentation describes a contact that changes state under defined battery and operating conditions; newer products can offer different generator controls.

Have the installer confirm the generator's remote-start interface and the required intermediate control. The design should account for start, stop, failed-start behaviour and safe isolation. Test the complete sequence under supervision. A contact closing on the screen or meter does not prove that the generator will start safely when nobody is present.

What to check or record

1. Check contact purpose and rating.
2. Confirm generator remote-start compatibility.
3. Test start and stop conditions.

Voltage alone does not demonstrate usable power or a demand for it.

PV power depends on both voltage and current. A voltage reading can exist during weak light or while little current is being drawn. In a storage system, available charging or load demand also affects the useful operating point.

Record the time, weather, each MPPT's voltage and current, battery state and load at the same moment. Compare with a previous clear-day period under similar conditions. If one input suddenly differs from its usual pattern, have the installer inspect that string and its protection. Do not unplug PV connectors to experiment under load.

What to check or record

1. Capture volts and amps together.
2. Record battery and load demand.
3. Compare each MPPT with its own history.

The design must remain below the inverter's voltage limit in the coldest expected conditions.

Use the module manufacturer's open-circuit voltage and temperature coefficient to calculate the string's cold-condition voltage. Compare it with the exact inverter input rating. Do not use the everyday operating voltage as the maximum possible voltage.

Keep the calculation with the installation record: module model, number in series, design minimum temperature and resulting voltage. A replacement inverter may have a different PV limit even when its AC output power is similar. If the calculation is missing, have it checked before adding panels in series.

What to check or record

1. Collect module Voc and temperature coefficient.
2. Record the number of series modules.
3. Recheck the exact inverter's DC maximum.

Current and input arrangement must also remain within the design limits.

Series and parallel expansion change different parts of the PV design. Keeping string voltage unchanged does not prove that another parallel string is allowed. The installer must check tracker current, short-circuit-current limits, connectors, cable protection and the permitted input arrangement.

Document the modules and strings assigned to each MPPT. Compare the finished arrangement with the exact datasheet rather than total array watts alone. Where a unit has multiple connectors, establish whether they belong to independent trackers or a shared tracker. More sockets do not automatically mean more independent MPPTs.

What to check or record

1. Record strings per MPPT.
2. Check operating and short-circuit current limits.
3. Confirm connector and protection design.

Compare their arrays and conditions before treating unequal output as a fault.

Two inputs can have different module counts, orientation, shading or operating conditions. The relevant comparison is the expected output of each installed array. Equal inverter inputs do not imply equal panels or equal sunlight.

Use a clear-day log and the string map to compare voltage, current and power. A difference that follows roof orientation is different from a sudden loss on a previously stable string. If the history suggests a new problem, give the installer the measurements and event date. Avoid swapping live PV connectors to see whether the symptom moves.

What to check or record

1. Compare panel counts and orientation.
2. Check shading at the recorded time.
3. Review each input's past output.

The system needs an available destination for the energy.

Consider the complete energy balance: present loads, battery charging and any permitted export. When one destination becomes unavailable, the inverter may have less reason or permission to draw the array's available power. The interpretation depends on whether the system is off-grid or grid-connected.

Compare the PV trace with battery charge status and load changes. A repeatable fall when charging finishes is different from a persistent loss throughout the day. On an SPM, also confirm the operating mode and meter configuration. Do not raise charging limits or enable grid export solely to keep a production graph high.

What to check or record

1. Check battery charge status.
2. Compare load and PV changes.
3. Review export permission only for the applicable hybrid system.

Startup conditions differ from normal MPPT operating conditions.

The exact model has a startup requirement and an operating range. Weak light may produce a voltage reading without enough stable available power for sustained operation. Use the correct datasheet instead of assuming all SPF models start with the same string.

Record a short time series of PV voltage, current and state around startup. Compare it with a clear morning and with the designed string configuration. If cycling continues in good conditions, have the installation checked. Adding panels without recalculating both cold voltage and current can turn a performance concern into an unsafe design.

What to check or record

1. Check startup and MPPT limits separately.
2. Compare cloudy and clear mornings.
3. Validate the full string design before expansion.

The ports serve different roles in normal and backup operation.

Growatt's SPM 8000–10000TL-HU installation guide distinguishes the grid connection from the emergency-load connection. An installation drawing should therefore show which circuits are served from each path.

During a backup problem, identify where the affected load is connected before changing settings. Record the grid state, battery availability and inverter on/off state. A circuit outside the backup arrangement will not become backed up through a software change alone. Any rewiring or protection change belongs with the installer.

What to check or record

1. Mark the grid and emergency-load paths.
2. List the affected circuits.
3. Check the inverter's operating state.

Earthing configuration is specific to the local system and approved design.

Growatt Australia's SPM guide includes an Auto N–PE instruction for its installation context. It should not be treated as a universal instruction for every country or earthing arrangement.

Have the installer establish the required neutral and protective-earth behaviour in both grid and islanded operation, including transfer equipment and protective devices. Preserve the approved setting and test record in the handover. If a PE alarm occurs, report it for diagnosis rather than toggling bonding options until the warning disappears.

What to check or record

1. Identify the installation's earthing arrangement.
2. Use applicable regional instructions.
3. Verify grid and backup protection through the installer.

A correct design checks voltage, current, tracker arrangement and conditions together.

1. Collect the exact module datasheet and the intended layout. Mark how many modules are in series, which strings are parallel and which MPPT receives each group. Record roof orientation and known shading rather than relying only on total panel wattage.

2. Have the installer calculate the cold-condition open-circuit voltage and expected operating range. Check the exact inverter's voltage, operating-current and short-circuit-current limits, including limits for each connector or tracker.

3. Include cables, connectors, isolation, protective devices and the installation environment in the design. An array accepted by another Growatt inverter is not automatically suitable after a replacement.

4. Retain the string map and measured baseline. Future performance checks can compare each tracker with its own expected behaviour. Do not disconnect PV connectors under load or make live experimental changes.

Setup inputs

Module identity

Where it is used

Module label and datasheet

What to enter or collect

Manufacturer, exact model and electrical revision.

Why it matters

Supplies actual voltage/current inputs.

Series count

Where it is used

PV layout

What to enter or collect

Number of modules in each series string.

Why it matters

Determines string voltage.

Parallel count

Where it is used

PV layout per tracker

What to enter or collect

Strings on each MPPT and connector arrangement.

Why it matters

Determines combined input current.

Temperature assumptions

Where it is used

PV design calculation

What to enter or collect

Design minimum temperature and module voltage coefficient.

Why it matters

Checks maximum cold-condition voltage.

Input limits

Where it is used

Exact inverter datasheet

What to enter or collect

DC maximum, startup range, MPPT range and current limits.

Why it matters

Different SPF and SPM models have different boundaries.

Operating baseline

Where it is used

Commissioning record

What to enter or collect

Time, weather and per-MPPT voltage, current and power.

Why it matters

Makes later comparisons meaningful.

What to check or record

1. Keep module and inverter datasheets.
2. Record series and parallel counts per MPPT.
3. Preserve the installer-approved calculation.
4. Store a clear-day operating baseline.

Separate source acceptance, charging permission and loading before changing anything.

1. Record the exact generator and inverter models, intended AC port and approved connection arrangement. A dual-input ES Plus and a single-source arrangement require different system diagrams.

2. With the installer, establish whether the inverter accepts the generator under ordinary load. Capture voltage, frequency, active-source indication and alarms. If the source is rejected, solve that issue before interpreting zero battery charge.

3. If the supply is accepted, record charger priority, time permission, battery state and the active charging limit. Check current units and whether the selected battery mode makes a field controlled elsewhere.

4. Test within approved limits and document the result. Include simultaneous loads when assessing generator demand. For unexplained dropout or repeated breaker trips, preserve the evidence and obtain model-specific support; do not bypass protection or keep forcing a failed test.

Setup inputs

Generator identity

Where it is used

Generator rating plate

What to enter or collect

Model and continuous supply rating.

Why it matters

Peak advertising figures do not establish continuous capacity.

Connected AC input

Where it is used

System drawing

What to enter or collect

Exact terminal group and source-transfer arrangement.

Why it matters

Distinguishes dedicated generator inputs from alternative AC sources.

Loaded source measurements

Where it is used

Installer's test record

What to enter or collect

Voltage and frequency before and during charging.

Why it matters

Shows whether the source stays acceptable.

Charging permission

Where it is used

Charger settings and schedule

What to enter or collect

Active source priority and allowed charging times.

Why it matters

An accepted AC supply may still not be permitted to charge.

Battery request

Where it is used

Battery/inverter live information

What to enter or collect

Charge state, limits and BMS alarms.

Why it matters

Charging also depends on the battery.

Combined demand

Where it is used

Generator test record

What to enter or collect

Simultaneous load and charging measurements with AC/DC units.

Why it matters

Avoids confusing source current with battery current.

What to check or record

1. Confirm the correct input arrangement.
2. Prove AC acceptance before diagnosing charge permission.
3. Include load and charging demand.
4. Record one controlled test at a time.

Choose the tool by the task and supported equipment.

ShinePhone is the user monitoring app; ShineServer is the web monitoring interface. Growatt positions ShineTools for local commissioning and firmware work, and OSS for installers and distributors. Similar-looking screens do not mean that every account has the same permissions or every product exposes the same settings.

Start with the exact inverter and logger manual. For an everyday production question, open the plant dashboard. For a setting that requires local commissioning, arrange the supported connection and appropriate installer access. Write down which app, account role and device screen you used so a later comparison is meaningful.

What to check or record

1. Identify inverter and logger models separately.
2. Use the tool named in the applicable manual.
3. Keep owner monitoring access documented.

Check the equipment locally before treating a missing cloud update as an electrical fault.

An offline cloud status describes a break in the reporting chain; by itself it does not establish whether the inverter is producing or supplying loads. Compare the latest upload time with the local display or other supported local status, then inspect the logger indicators using its own manual.

Record whether the failure affects one device, the entire plant, only the phone app or also the web portal. A working local system and stale cloud data point the investigation toward communication. A local fault deserves a separate equipment diagnosis. Avoid deleting the plant as an initial troubleshooting step: that changes account configuration while obscuring the original evidence.

What to check or record

1. Record local status and last upload time.
2. Compare app and web views of the same device.
3. Photograph the logger LED colour and flashing pattern.

Colour and whether the light flashes both matter.

The November 2023 ShineWiFi-X manual identifies flashing red with the inverter link, flashing green with the router link but no server link, and flashing blue with successful communication through to ShineServer. A steady light is a different state; do not use a simple red/bad and green/good rule.

Read the suffix on the logger before using this table. ShineWiLan-X2 and RF sticks have their own connection modes. Record a short video if the pattern is difficult to describe, and compare it with the matching manual before resetting anything. A useful report says both the colour and whether it is steady, slow flashing or fast flashing.

What to check or record

1. Use the ShineWiFi-X manual for ShineWiFi-X.
2. Distinguish steady from flashing.
3. Check the corresponding layer: inverter, router or server.

A configuration state is not the same as a cloud connection.

For ShineWiFi-X/S, the cited configuration guide uses steady blue for hotspot configuration. On ShineWiLan-X2, the setup instructions use steady blue for Bluetooth configuration. This is why identifying the logger matters before following a video.

Complete or exit the documented configuration process, then wait for a fresh device timestamp. Keep the phone on the connection requested by that wizard; phones can abandon a hotspot that has no internet. Do not apply a button sequence for a different logger. If the state never changes, record the last successful wizard step and the exact message rather than repeating the entire process without a record.

What to check or record

1. Confirm the full logger name.
2. Follow its hotspot or Bluetooth workflow.
3. Verify a fresh upload after configuration.

Check the internet path after the logger has reached the router.

For the ShineWiFi-X guide, flashing green means the router connection exists but the server connection is incomplete. First test internet access through that same router. A phone using mobile data can appear online while the home internet connection is down.

If ordinary internet access works, give the network administrator the logger model, time of failure and relevant manufacturer networking requirements. Ask them to check the device's outbound connection and network assignment. Do not broadly disable the firewall or expose the logger to the public internet. Retest after one change and compare its indicator and upload timestamp.

What to check or record

1. Test internet through the actual local network.
2. Check whether other devices on that network work.
3. Use the documented outbound requirements.

Use a suitable 2.4 GHz network and the instructions for the logger revision.

The cited Growatt setup material requires a 2.4 GHz connection for these loggers. Older and newer documents differ in how they describe combined-band networks and permitted credential characters. Treat the current instructions for your logger revision as the starting point rather than applying one historical restriction to every Growatt device.

For a failed setup, a separately identifiable 2.4 GHz network is a useful controlled test. Record the network security type, signal level at the inverter and whether the wizard reaches the router. Improve coverage or use a supported wired alternative if the location is unreliable; repeated pairing does not solve poor radio coverage.

What to check or record

1. Confirm 2.4 GHz availability.
2. Check the exact logger revision's credential requirements.
3. Test signal at the equipment location.

Reconfigure the existing logger's network connection.

The logger must receive the new network details. Use its model-specific reconfiguration procedure and the existing datalogger entry where available. Changing a router does not create a new inverter or a new physical solar installation.

Before changing anything, confirm you can sign into the account that already contains the plant. Photograph the logger label and record the old plant name. After the wizard completes, check that new readings arrive under the expected device. If the app claims the logger already exists, investigate its existing account assignment instead of creating duplicate plants to work around the message.

What to check or record

1. Keep the existing account and plant identifiable.
2. Reconfigure the correct serial number.
3. Verify a new timestamp and normal values.

The logger may already be registered in an existing plant or account.

Growatt's configuration guidance directs users to find and reconfigure the existing datalogger; when it cannot be found, contact support. A factory network reset and a cloud account assignment are separate matters. Repeating the Wi-Fi reset is therefore not a reliable way to resolve ownership or binding.

Check your other plants and confirm the installer did not register the logger under a different account. For a house sale or second-hand unit, arrange a proper handover with the previous owner or support. Keep proof of ownership and both serial numbers available. Do not publish the verification code in a public forum while asking for help.

What to check or record

1. Search existing plants for the logger serial.
2. Ask the installer or previous owner about registration.
3. Use support to resolve an unknown binding.

The inverter and datalogger can have different labels.

For a datalogger setup, use the logger identification requested by the wizard. Growatt's ShineWiLan-X2 instructions explicitly ask users to match its serial number and check code with the packaging. Scanning an inverter label in a field that expects a logger can send the investigation in the wrong direction.

Make a private equipment record with clear headings for inverter, battery and logger. If a label is unreadable, ask the seller or Growatt support how to recover the required identification. Preserve the physical label and avoid guessing similar characters. A check code is part of device registration information, so share it only with the intended support recipient.

What to check or record

1. Check the wizard's requested device type.
2. Compare label and packaging.
3. Keep registration codes private.

Check the email destination and use the official registration route.

Growatt's basic FAQ recommends checking spam and offers the web registration page as an alternative. First confirm the address was entered correctly and that the mailbox can receive other messages. Avoid creating several accounts with slightly different addresses while waiting for the same code.

If it still fails, record the app version, region and exact error, then contact the applicable support team. Never send your chosen password with the report. Once registration succeeds, sign in and confirm the expected plant is attached before attempting equipment reconfiguration; an account problem does not establish a fault in the inverter.

What to check or record

1. Check spam and the entered address.
2. Try the official web registration if needed.
3. Report the exact message without sharing passwords.

Use the seller's or product manual's instructions for your device.

Growatt's basic FAQ tells users to obtain the installer code from their seller or local support. It gives a specific GWATT exception for NEO/NOAH purchases where the seller cannot be reached. The AURA 5000 manual also prints GWATT in its account setup section. This does not make it a universal code for every inverter.

If the field is optional in your regional registration flow, follow that flow rather than inventing an installer relationship. Keep the account's actual owner clear. For support access later, arrange the supported permissions instead of sharing the owner's password or choosing an unrelated installer's code found online.

What to check or record

1. Identify the product and regional registration flow.
2. Use the seller's code when provided.
3. Apply only the exception documented for your product.

Check the plant time zone and the timestamp of the data.

A plant's configured time zone affects how monitoring presents the day. Compare the app, web portal and device timestamp at the same moment before concluding that energy has disappeared. Data from different day boundaries cannot be compared directly.

Record the plant location and selected time zone, including whether the displayed offset matches local seasonal time. Then compare one known event, such as the start of production, in both views. Keep this diagnosis separate from changing the inverter's operating schedule: confirm which clock the relevant schedule actually uses. Recheck a complete day after correcting display metadata rather than rewriting historical totals.

What to check or record

1. Compare one event across app and web.
2. Check plant location and time-zone metadata.
3. Verify schedule time separately.

Compare timestamps before comparing watts.

Cloud dashboards contain samples transmitted through a logger. They should not automatically be treated as a live meter at the instant you look at the screen. Read the measurement time and compare values from the same period; a kettle switching off between samples can explain a large apparent difference.

If a value stays unchanged, determine whether the entire device record is stale or only one field is unchanged. Check local measurements before diagnosing a battery or PV problem. For recovery after an outage, the ShineWiLan-X2 advertises local data storage and retransmission, but that does not establish the recovery behaviour of every older logger or third-party dashboard.

What to check or record

1. Compare measurement times.
2. Separate current power from accumulated energy.
3. Identify the logger's buffering capabilities.

Choose a logger explicitly compatible with the inverter.

Growatt offers wired monitoring options, and ShineWiLan-X2 combines LAN, Wi-Fi and Bluetooth. A wired path can help where radio coverage is weak, but a product's similar name or connector shape is not proof of compatibility.

Check the inverter's supported logger list before purchasing. For an installed wired logger, test the network cable, switch port and internet access without altering inverter control settings. Keep LAN configuration with the network administrator where static addressing or access rules are required. After moving from wireless to wired networking, confirm that the same plant and intended device continue updating rather than assuming the presence of a link light proves cloud reporting.

What to check or record

1. Confirm inverter/logger compatibility.
2. Test the cable and router port.
3. Verify the plant's latest timestamp.

ShineLink uses a separate gateway and radio link.

The cited ShineLink/ShineLink-X instructions describe an inverter RF stick and a ShineLan Box connected to the router. Troubleshooting therefore has two communication paths: inverter-to-box and box-to-network. Check the indicators on both devices.

Do not follow a direct Wi-Fi dongle reset video for the RF kit. Identify the generation first: the newer ShineLink-X2 has its own features and manuals. If one inverter is missing from a multi-device system, compare its radio pairing and location with a working device before changing the entire gateway configuration. Keep the pairing record so a repair does not accidentally associate the wrong equipment.

What to check or record

1. Identify gateway and RF-stick models.
2. Check both sides of the link.
3. Use the correct generation's pairing instructions.

Monitoring access and commissioning permissions are different.

Growatt separates user monitoring from installer operation and maintenance tools. A visible value can be a read-only measurement, a remotely managed value or a setting exposed only through the supported commissioning interface. A missing edit button is not evidence that a firmware file or password from another model should be used.

Record the setting name, model, firmware, account role and connection method. Ask the installer to confirm which interface owns that setting and whether another controller can override it. When a permitted change is made, reopen it and observe the effect under the intended conditions. A saved screen alone does not prove the system followed the command.

What to check or record

1. Distinguish a measurement from a configurable value.
2. Confirm the required account role and tool.
3. Read back the saved value and test behaviour.

Match the update to a documented need and exact hardware.

Growatt's general FAQ says a fault-free device does not normally need an upgrade simply for its own sake. Some product-specific commissioning or feature guides do require compatible firmware. Use the more specific instructions for the exact device and intended feature.

Send support the current versions and fault evidence before accepting a firmware recommendation. Record the approved target and prerequisites, including the supported update tool and stable power conditions. Do not install a file intended for a similar model. After a successful update, read back operating settings and repeat the affected function test; a completed transfer is only one part of verifying the result.

What to check or record

1. Record existing versions before updating.
2. Confirm the exact approved firmware package.
3. Recheck settings and the original symptom.

Preserve the evidence and reset only the component that needs it.

A communication reset, account removal and inverter factory reset are different operations. A logger manual can describe restoring its network settings without authorizing removal of the plant or resetting battery and grid parameters. Identify the intended scope before pressing a reset control.

First capture the error, current settings, device list and last working date. Try the smallest documented recovery that fits the observed fault. Afterward, verify the specific layer you intended to repair. If the electrical configuration would be erased, involve the installer who can restore and validate it. Repeated broad resets can replace one understandable fault with several missing settings.

What to check or record

1. Record the exact reset operation.
2. Save configuration and fault evidence.
3. Verify the repaired function afterward.

A short evidence pack helps separate settings, communication and hardware faults.

Provide the exact model and serial number, a concise symptom and the time it occurred. Growatt's support FAQ asks for relevant identification, fault images and system connection information. Choose the material that bears on the problem instead of sending an unexplained folder of screenshots.

A useful sequence is: expected behaviour, actual behaviour, local readings, cloud timestamp, recent changes and tests already performed. Include battery and meter details when they participate in control. Keep photos readable and redact unrelated personal details. For electrical measurements or internal inspection, use a qualified installer. Keep one case history so subsequent advice can build on earlier results.

What to check or record

1. Include model, firmware and exact alarm text.
2. Describe what changed before the fault.
3. Attach relevant diagrams and timestamped evidence.

Identify every controller and distinguish monitoring from writing commands.

A third-party integration may read data, issue commands or do both. Its compatibility and behaviour cannot be established from the Growatt logo alone. Confirm the integration's documented support for the precise model and firmware, and identify whether it uses cloud or local communication.

If a setting changes unexpectedly, record scheduled actions and compare the native Growatt interface with the external controller. Temporarily pausing an automation is a clearer diagnostic test than changing several battery settings. Do not copy another model's register map or expose credentials in a forum. Restore only known settings and verify control after reconnecting the integration.

What to check or record

1. List all controllers and schedules.
2. Check whether the integration writes values.
3. Compare native readings with the external system.

They perform different jobs in a balcony energy system.

NEO is a microinverter family. NOAH 2000 is DC-coupled storage used with a compatible microinverter. NEXA 2000 is an all-in-one storage family, while AURA 5000 is AC-coupled storage. Start with these roles before comparing battery sizes or copying an app setting.

Draw the actual energy path: panels, storage, inverter, grid and supported loads. Mark where each cable carries AC or DC. A similar name does not establish compatible wiring, batteries, expansion modules or backup capability. Use the documentation for every device in the combination, including its regional variant.

What to check or record

1. Identify which device converts DC to AC.
2. Record exact models and communication variants.
3. Check the approved system arrangement before expanding.

Use the current compatibility list and matching instructions.

Growatt provides a NOAH 2000 compatible microinverter list and an upgrade guide on the product page. Consult those documents for the full model and any firmware requirements. Familiar solar connectors do not establish an approved electrical combination.

Record the microinverter's input characteristics and the NOAH variant, then follow the documented arrangement. Do not substitute an app association feature for an electrical compatibility check. After commissioning, compare commanded output with measured microinverter output over a stable interval. Escalate a persistent mismatch with both device models and readings.

What to check or record

1. Match the complete microinverter model.
2. Check documented firmware prerequisites.
3. Verify actual output after pairing.

The mode changes the priority of available solar energy.

Growatt describes Load First as meeting the configured system output before storing surplus; the battery can supplement insufficient PV within its limits. Battery First prioritizes charging the battery. These are energy-management choices, so the same sunlight can produce different charge and output readings under each mode.

Compare the active mode, output request, PV input and state of charge at the same timestamp. Decide what you want before editing the schedule. A request higher than available solar may consume stored energy in Load First. Check the exact firmware's help text for boundary behaviour.

What to check or record

1. Read the active mode and time period.
2. Compare PV input and requested output.
3. Check state-of-charge limits before changing modes.

Check the default output as well as the scheduled mode.

The NOAH manual describes a default output used when no operating-mode time period applies. An uncovered interval therefore needs attention; a schedule is more than the start time of its first entry.

Write a 24-hour table showing every interval, mode and requested output. Look for gaps, overlaps and a clock that does not match your intended local time. Compare settings with readings at an interval boundary. Change one item, save it, then reopen it. Use timestamped samples on both sides of the boundary before concluding that discharge is continuous.

What to check or record

1. Cover the entire intended day.
2. Record default output separately.
3. Verify the clock and one schedule transition.

An operating reserve can stop useful output before the battery is empty.

Look at the configured lower state-of-charge limit, active mode and any temperature or protection message. Remaining energy and permitted output are different questions. A reserve keeps part of the battery available rather than forcing the pack down to its last possible voltage.

Record the reported state of charge when output stops and whether the event repeats. If it matches the operating limit, decide whether that reserve suits the application; do not bypass protections to chase the final percentage. If it stops well above the intended reserve, collect settings and alarms for support.

What to check or record

1. Compare stop point with the configured reserve.
2. Check temperature and protection messages.
3. Distinguish a control limit from a hardware fault.

Battery temperature and available solar energy affect operation.

The NOAH product page describes a heating function that depends on available solar. Cold-start capability is not permission to charge cells at any temperature, and a wide operating range is not the same as unrestricted charging throughout that range.

Read the battery temperature and reported state before changing power settings. Allow the documented heating process to operate and compare its progress with PV input. Check placement against the manual's environmental requirements. If the unit stays inhibited in suitable conditions, report temperatures and alarms rather than raising requests or defeating protection.

What to check or record

1. Read battery temperature, not just outdoor temperature.
2. Check whether PV is available for heating.
3. Keep temperature protections active.

A grid-connected microinverter does not by itself create a backup supply.

NEO is a grid-connected microinverter. Operation depends on an acceptable AC grid connection; a panel receiving sunlight does not by itself provide an independent household AC supply. Adding DC storage does not automatically change that operating role.

For backup, identify a product and wiring design explicitly providing the required isolated output. Keep the supported load connection separate from the public grid and have installation changes designed appropriately. During an outage, follow the system's backup instructions rather than attempting to energize a wall socket with improvised leads.

What to check or record

1. Check the documented backup architecture.
2. Keep grid-connected and isolated outputs distinct.
3. Never improvise a backfeed cable.

Compare the panels and conditions on each independent tracker.

The NEO 600–1000M-X family has two MPPT channels. Different shade, orientation or module characteristics can produce different readings. Compare them at the same timestamp and under similar light before deciding that a channel failed.

Record which module is connected to each input and watch the daily pattern. A persistent zero warrants checking the exact fault and installation, but connector handling and voltage measurements belong with the qualified person responsible for the system. Never swap live PV connectors as an experiment. Check panel electrical limits as well as headline watts.

What to check or record

1. Compare like-for-like timestamps and conditions.
2. Map each panel to its input.
3. Have electrical checks performed safely.

NEO communication variants use different setup paths.

Growatt's NEO 600–1000M-X page lists separate Wi-Fi and LoRa documents. A LoRa installation and a direct Wi-Fi variant should not be configured as if their network hardware were identical. Read the supplied model and communication label first.

Trace the reporting route from microinverter to phone. If a gateway is involved, confirm its pairing and internet link separately. A phone seeing the home Wi-Fi does not prove that the microinverter is paired with its gateway. Use the matching manual and keep the gateway serial in the equipment record.

What to check or record

1. Identify Wi-Fi or LoRa hardware.
2. Use the matching quick guide.
3. Check gateway pairing where applicable.

Choose consumption following, a manual schedule or supported price optimisation.

AURA documentation distinguishes Smart Self-Consumption, Smart Scheduling and TOU. The first depends on a supported meter; TOU uses entered time periods and power requests. Smart Scheduling uses supported price information to plan operation.

Define the desired outcome before enabling a mode. Record the meter source, permitted power and reserve alongside the schedule. If behaviour surprises you, check the active mode and time period. Do not assume a manual time slot and automatic optimisation are both controlling the system. Read back settings after changing strategy.

What to check or record

1. Choose a clear operating objective.
2. Confirm compatible meter and tariff inputs.
3. Verify which mode is active.

Permitted power depends on the variant and installation method.

AURA documentation distinguishes plug-in operation from professional distribution-panel installation. A power figure in the model range does not authorize that power through any existing socket or cable. Check the unit label, regional documentation and installed arrangement.

Ask the installer to confirm continuous input, output and circuit limits before changing power. Keep grid charge/discharge power separate from the multifunction-port limit. Where revisions give different values, use the instructions applicable to the delivered unit and obtain clarification before increasing the setting. A software option cannot establish wiring suitability.

What to check or record

1. Confirm variant and installation method.
2. Record grid and multifunction-port limits separately.
3. Use professional installation where required.

Check its selected role and the EPS requirements.

The AURA manual identifies the versatile AC port as a microinverter input or load output, with EPS selection required for backup loads. A physically available connector does not prove it is configured for the attached appliance.

Check the selected function, battery availability and appliance continuous and starting power against the applicable manual. Test the intended critical load during commissioning. Do not assume an EPS output protects every load elsewhere in the home, or that an advertised transfer time guarantees compatibility with every sensitive device. Collect the displayed status if a fault persists.

What to check or record

1. Confirm EPS/load output is enabled.
2. Check continuous and starting load demand.
3. Test the actual appliance and connection.

Capacity and power expansion follow different installation rules.

Growatt's parallel guide distinguishes capacity expansion in the plug-in arrangement from power expansion through professional panel installation. Adding units does not automatically increase permitted power at the original wall connection.

Identify the arrangement before purchasing cables or copying an app screenshot. Record master/slave roles, compatible firmware and approved connections. Check backup separately: the parallel guide describes independent battery supply to the respective units' EPS loads. Total stored system energy should therefore not be assumed fully available at any single backup socket.

What to check or record

1. Separate capacity and power requirements.
2. Follow the applicable parallel guide.
3. Verify backup behaviour for each intended load.

Identify the logger, register the correct device and verify fresh measurements.

Record the inverter and logger models first. Choose the matching Growatt setup guide, then prepare the account, correct plant location and supported network connection. Treat electrical connection to the inverter and network configuration as separate steps.

Register or select the existing plant, add the logger identification requested by the wizard, and follow the supported Wi-Fi, LAN or gateway workflow. Do not substitute an inverter serial for a logger serial. If a binding already exists, resolve it through the existing owner or support.

Finish with evidence: a recent cloud timestamp, the intended inverter under the correct plant, and plausible values compared with local readings. Record the app version and working network method. Keep the private registration details available for handover.

Setup inputs

Logger identity

Where it is used

Device label and registration wizard

What to enter or collect

Model, serial number and required verification code.

Why it matters

The logger and inverter may have different identities.

Network method

Where it is used

Logger configuration

What to enter or collect

Supported Wi-Fi, Ethernet or gateway arrangement.

Why it matters

The wizard must match the hardware.

Plant time zone

Where it is used

Plant information

What to enter or collect

The time zone of the installation.

Why it matters

Graph dates and times need location context.

Acceptance record

Where it is used

Commissioning record

What to enter or collect

Fresh upload time and matching local observations.

Why it matters

Registration alone does not prove complete reporting.

What to check or record

1. Confirm the model-specific connection method.
2. Use the correct regional account and plant.
3. Verify a fresh timestamp and plausible values.
4. Keep the owner handover record.

Match the microinverter, define output priorities and verify an operating cycle.

Start with the exact NOAH revision, panel arrangement and compatible microinverter. Check compatibility and firmware guidance before copying another installation. Have the electrical arrangement checked against all device limits.

Write down what each part of the day should do: store solar, supply a defined output or retain a reserve. Record default output separately from time periods. Where supported smart-load control is used, distinguish measurements from a GroPlug-controlled appliance from a measurement of the entire home.

Commission in stages: establish monitoring, observe PV charging, verify an output period and check reserve behaviour. Compare readings from the same timestamp and record the active mode. This helps separate scheduling, insufficient power, communication and protection states.

Setup inputs

System composition

Where it is used

Equipment record

What to enter or collect

NOAH revision, module count, microinverter and panel models.

Why it matters

Family names do not establish compatibility.

Daily plan

Where it is used

NOAH operating mode

What to enter or collect

Periods, mode and desired output.

Why it matters

The controller needs an unambiguous objective.

Reserve and charge ceiling

Where it is used

Supported battery settings

What to enter or collect

Permitted limits chosen for the intended use.

Why it matters

Operating and protective limits constrain available energy.

What to check or record

1. Confirm exact microinverter compatibility.
2. Record scheduled and default output separately.
3. Check time periods and clock.
4. Observe charging, output and reserve behaviour.

Check the installation method before configuring power and backup.

Identify the AURA variant and approved arrangement. Have the installer establish the permitted circuit and device limits before selecting power settings. More stored energy and more permitted output are separate design decisions.

Associate the supported meter using its documented procedure, then verify import/export direction with a known change in household load. Select the desired consumption or scheduling strategy. Record the meter, mode, reserve, permitted power and any external controller.

Select the versatile port's role for the connected device. Commission backup under the applicable EPS instructions and test the intended appliance. For parallel systems, follow the current parallel guide, document each unit's role and confirm how each backup load obtains energy.

Setup inputs

Installation method

Where it is used

Design and commissioning record

What to enter or collect

Approved plug-in or professional panel arrangement.

Why it matters

Power settings must follow the electrical installation.

Meter association

Where it is used

Supported AURA meter setup

What to enter or collect

Compatible meter and documented network or radio connection.

Why it matters

Self-consumption control needs reliable measurements.

Port function

Where it is used

AURA configuration

What to enter or collect

Documented role for the microinverter or EPS load.

Why it matters

The same physical port has different operating roles.

What to check or record

1. Confirm variant, arrangement and circuit limits.
2. Verify meter readings with a known load change.
3. Read back mode and power settings.
4. Test the intended port and backup function.

Distinguish a battery recovery-charge request from ordinary scheduled charging.

First check whether the battery is asking for charge because its SOC has fallen too low. Growatt’s APX 5.0–30.0P-S1 manual distinguishes stopping discharge at the configured cutoff from requiring forced charging below that cutoff. That battery status is different from a tariff schedule. It does not prove that every Growatt combination overrides the user’s AC-charge setting.

Record SOC, the configured cutoff, battery messages, active mode and schedule, together with simultaneous battery and grid power. Confirm that energy is actually entering the battery rather than only supplying household loads. Ask the installer to identify the charge request for the exact inverter, battery and firmware. Do not remove protection or copy another owner’s reserve settings; repeated charge/discharge cycling needs a model-specific diagnosis.

What to check or record

1. Capture the battery status and SOC when charging starts.
2. Read back cutoff, active mode and charging periods.
3. Compare simultaneous grid, battery and household power.
4. Have repeated recovery cycles investigated without bypassing protection.

Unbalanced output capability does not remove the individual phase limits.

Do not treat the total inverter rating as power freely transferable to one phase. Growatt advertises unbalanced output for SPH 4000–10000TL3 BH-UP, but its manual also gives an example where enough total power is available while a heavily loaded phase still needs grid power because its phase limit has been reached. Use the exact model’s phase-current and power specifications, not only the family’s headline kW.

Record L1, L2 and L3 load and inverter power at the same time, and note whether the system is grid-connected or running on EPS. Check backup specifications separately. Have the installer review the distribution of large appliances and test representative simultaneous loads. A low total load does not rule out one overloaded phase. Do not join phase outputs or increase protective-device ratings to work around the limit.

What to check or record

1. Identify the exact model and its per-phase limits.
2. Record individual phase loads as well as the total.
3. Distinguish grid-connected and EPS test conditions.
4. Have appliance distribution and starting demand reviewed.

The inverter’s equalization stage and lithium cell balancing are different functions.

The SPF 3500/5000 ES version 4.0 manual describes equalization in terms of lead-acid chemistry and provides separate voltage, duration, timeout and interval settings. It is not a control for lithium-cell balancing by the BMS. A field appearing under User-Defined does not establish that the connected battery permits that charging stage.

Before enabling it, identify the exact battery and obtain its manufacturer’s approval and charging requirements. Distinguish the normal stage duration from the timeout used when the target voltage has not been reached; the latter is not a cooldown period. If a battery supplier uses “equalize” differently, confirm the meaning instead of copying forum values. Leave the function disabled unless the battery-specific charging procedure requires it.

What to check or record

1. Record the exact battery chemistry and model.
2. Separate inverter equalization from BMS cell balancing.
3. Confirm permitted voltage, duration, timeout and interval.

Charging and an illuminated display do not prove that the output is enabled.

The SPF 3500/5000 ES version 4.0 manual allows battery charging in standby without AC output. This differs from the power-saving response to a very small load. Charging can also coexist with a fault, so do not diagnose the output from the charging indicator alone.

Record the operating state, displayed output voltage, alarms and position of the normal on/off switch identified in the manual. Check the output schedule and battery cutoff status against the approved configuration. Do not change protection limits merely to force the output on. For a new installation, have the installer verify commissioning and the output connection. After the documented normal start, verify a modest test load. The on/off switch is not electrical isolation for maintenance.

What to check or record

1. Record standby, power-saving or fault status separately.
2. Check the normal output switch and output schedule.
3. Preserve alarms before restarting or changing settings.

It changes the supply path; it does not increase the inverter’s rated power.

For SPF 3500/5000 ES version 4.0, overload bypass transfers battery-mode operation to line mode when enabled. It therefore needs a usable AC supply. This is a different function from automatic restart after overload. Selecting either option does not prove that the connected loads can be supplied safely or without interruption.

If transfer fails, record the load at the event, accepted AC-source status, battery and inverter alarms, and the bypass setting. Ask the installer to check the complete input/output circuit and the applicable transfer, cable and protection limits. A battery protection event or unavailable AC source needs its own diagnosis. Do not infer extra bypass capacity from another owner’s experiment or fit a larger breaker to make the symptom disappear.

What to check or record

1. Distinguish overload bypass from automatic restart.
2. Confirm that the AC source is accepted at the event.
3. Check the installation limits before testing higher loads.

Verify the local meter association, not just each device's internet connection.

Growatt's local EcoTracker guide for NOAH 2000 and NEXA 2000 requires a shared network and compatible firmware. Discovery uses mDNS on the local network. Seeing readings in the meter's own app does not establish that the storage device has discovered and associated with it.

Follow the matching association procedure, select Smart Self-consumption Mode and check the associated meter identity and live power data. Ask the network administrator to investigate local discovery if the devices cannot find each other; avoid broadly disabling network protection. Record app and firmware versions, meter status and simultaneous readings before requesting support. The guide's meter view reports the three-phase power sum, so compare equivalent measurements.

What to check or record

1. Confirm the supported firmware and same-network arrangement.
2. Verify the associated meter identity and fresh readings.
3. Check the active mode before changing output power.

The documented AC-coupled function uses a compatible grid-side meter and specific control settings.

Growatt's NEXA 2000 AC-coupled guide describes charging from surplus generated by a separate solar inverter. The controlling meter measures the household grid connection. A separate generation meter is described as optional for additional reporting; it is not the required control measurement.

Confirm compatible app and firmware versions, associate a supported meter, then follow the guide for Grid power allowed, AC-coupled operation and Smart Self-consumption Mode. Test during a known surplus and verify battery charging against the grid reading. Do not infer electrical wiring from an app diagram or connect an existing inverter to a backup socket. If the expected controls are absent or the result differs, send the exact versions and observed power flows to support.

What to check or record

1. Identify the grid-side control meter.
2. Check AC input permission, coupling and operating mode together.
3. Verify actual surplus charging during a controlled observation.

It keeps the supported grid-connected system available in standby for automated operation.

Growatt's NEXA 2000 Always On guide addresses installations without directly connected panels, including retrofits using existing rooftop PV. It requires compatible app and firmware versions and enabling Grid Power Allowed with Always On. Match the complete setting label to this guide when similarly named AC options appear.

Remaining available can use grid energy. The guide describes stopping ordinary discharge at the configured lower SOC and protective charging if the displayed charge becomes very low. Always On therefore does not promise zero grid consumption or continuous backup output. Record the active settings, SOC and overnight import if behaviour is unexpected; do not force a deep discharge to test the protection. Use the separate AC-coupling instructions when the aim is charging from another inverter's surplus.

What to check or record

1. Confirm the documented Always On function for NEXA 2000.
2. Check grid availability and AC-input permission.
3. Compare standby behaviour with the intended reserve and charging plan.