Growatt · A major brand in the UK. 26 codes across 2 product families, each taken from the manufacturer’s manuals. Growatt technical support ↗
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26 codes
| Code | Meaning | Stops? | Homeowner check? |
|---|---|---|---|
| CT LN Reversed | CT LN Reversed - L and N of SP-CT reversed / SP-CT PE wire. | Partly | Yes |
| Error 200 | AFCI fault - an electric arc occurred in the PV system; AFCI tripped and the inverter is in permanent shutdown. | Yes | Yes |
| Error 201 | Residual I High - leakage current too high. | Yes | Yes |
| Error 202 | PV Voltage High - the DC input voltage is exceeding the maximum tolerable value. | Yes | Yes |
| Error 203 | PV Isolation Low - insulation problem. | Yes | Yes |
| Error 300 | AC V Outrange - utility grid voltage is out of permissible range. | Yes | Yes |
| Error 302 | No AC connection. | Yes | Yes |
| Error 303 | PE abnormal - voltage of Neutral and PE above 30 V. | Yes | Yes |
| Error 304 | AC F Outrange - utility grid frequency out of permissible range. | Yes | Yes |
| Error 402 | Output High DCI. | Yes | Yes |
| Error 404 | Bus sample fault. | Yes | Yes |
| Error 405 | Relay fault. | Yes | Yes |
| Error 407 | Auto Test Failed - auto test didn't pass. | Yes | Yes |
| Error 408 | Over Temperature. | Partly | Yes |
| Error 409 | Bus over voltage. | Yes | Yes |
| Error 411 | DSP communicates with M3 abnormal. | Yes | Yes |
| Error 414 | EEPROM fault. | Yes | Yes |
| Error 417 | The data sampled by the DSP and redundant M3 is not the same. | Yes | Yes |
| Error 420 | GFCI fault. | Yes | Yes |
| Error 425 | AFCI self-test fault. | Yes | Yes |
| PairingTime Out | Communication fault between SP-CT and inverter (distance/pairing). | Partly | Yes |
| Warning 202 | DC SPD function abnormal. | Yes | Yes |
| Warning 203 | PV1 or PV2 circuit short. | Yes | Yes |
| Warning 401 | Inverter communicates with Meter abnormal. | Partly | Yes |
| Warning 404 | EEPROM abnormal. | Yes | Yes |
| Warning 405 | Firmware version is not consistent. | Yes | Yes |