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90 codes documented in Growatt's inverter and battery manuals. Pick yours to see what it means, what you can safely check, and when to call your installer.
WattMate is not affiliated with Growatt. This page summarises Growatt's own published documentation; your installer and Growatt are the authority on your system. WattMate doesn't repair systems or make site visits.
Find the Growatt manual for your model
Your installer is your first warranty contact. If they've gone, the manufacturer's warranty line still covers the hardware. Don't open the inverter or battery case yourself: work inside it is for a licensed electrician.
If you see smoke, scorch marks or smell burning, switch the system off at the AC and PV isolators and call your installer. If anyone is in danger, call 000.
Most faults are an isolator, a WiFi drop or a known error code. Start with the lookup and guides above.
Your installer is your first warranty contact. If they've gone, the manufacturer's warranty line still covers the hardware.
Find the manufacturer's warranty lineA free energy audit report sizes a new system for your actual bills and shows what a replacement would do. Your first results need no details; your details only reach installers if you ask for the full report.
Get your free energy audit report