| Display | Comments |
|---|---|
| No any display in LCD or LED | Check PV-input connections |
| W01 No grid | Check grid connection cables |
| W02 Vin over voltage | Check the Voc of PV string, see if it is greater than or too close to max. input. DC voltage of relative inverter type |
| E01 Isolation error | Check the impedance is between PV(+) & PV (-) and the PV-inverter is earthed. |
| E02 Leak Error | The leakage current is too high. Unplug the inputs from the PV string and check the peripheral AC system. |
| E03 Grid Fault | Make sure grid voltage and frequency meet the specifications. |
| Display | Comments |
|---|---|
| Auto Test Failed | Auto test does not pass |
| W01 No grid | No utility, no grid connect |
| W02 Vin over voltage | PV panel voltage is too high |
| E01 Isolation error | Insulation problem of PV panel |
| E02 Leak Error | GFCI fault, leakage current is too high |
| E03 Grid Fault | Grid voltage / frequency is out of range |
| Display | Comments |
|---|---|
| E04 Coherence Error | Consistent Fault |
| E05 Over Temperature | Internal temperature abnormal |
| E06 Relay Failure | Output relay fault |
| E07 DCinj failure | Output relay fault |
| E08 EEPROM failure | EEPROM fault |
| E09 Com. Failure | Communication fault |
| E10 DC Bus OV. | DC bus over voltage |
| E11 DC bus UV. | DC bus under voltage |
| E12 VRef Error | 2.5V reference voltage fault |
| E13 DC Sensor Fault | DC current sensor fault |
| E14 GFCI Failure | GFCI Device is damaged |
Goodhew Electrical and Solar offers maintenance and servicing for all inverters and solar systems. Contact our team today for more information.
