- Error code
- 18 codes
- Category
- Grid fault
- Manufacturer
- REFUsol
1What the error means
The following error codes of REFUsol inverters belong to the same fault family: grid fault. Find the code shown by your inverter in the table and see what it means.
2Possible causes
- Grid outage or instability
- Tripped fuse or RCD, or lost phase
- Loose AC connection
- Wrong grid parameters
3What to do
- Check the fuses, the RCD and the AC switch.
- Check the AC cable connections.
- Confirm that the correct country setting is selected.
- If it recurs with no obvious cause on the grid, the inverter needs to be checked.
The codes in detail
| Code | What it means |
|---|---|
| 0x09002C | Islanding detected (phase shift) — the grid section was cut off and the inverter disconnected |
| 0x090052 | The inverter does not connect to the grid because the user lock is active |
| 0x090062 | Grid instability handled according to the grid code |
| 0x0A0011 | Grid fault detected by the frequency monitoring circuit |
| 0x0A0024 | Islanding detected — the grid section was cut off and the inverter disconnected |
| 0x0E0019 | The nominal grid voltage is out of range |
| 0x0E0021 | External grid protection fault (ENS) active on the digital input |
| 0x0E0029 | Grid monitoring detected a fault |
| 0x0E002E | Grid monitoring detected a fault |
| 0x0E0032 | The control limit of the space vector modulation was exceeded |
| 0x0E0038 | Grid monitoring detected a fault |
| 0x0F0100 | Grid disturbance (stability, inrush current or load) — low |
| 0x0F0101 | Grid disturbance (stability, inrush current or load) — high |
| 0x0F0102 | Grid disturbance (stability, inrush current or load) |
| 0x0F0103 | Grid disturbance (stability, inrush current or load) |
| 0x0F0106 | Grid disturbance (stability, inrush current or load) |
| 0x0F0107 | Grid disturbance (stability, inrush current or load) |
| 0x20003 | Wrong phase rotation (clockwise rotating field) |
4Repair by Aineas
You send the inverter to our lab in Thessaloniki. We diagnose it, inform you of the fault and the cost, and the repair starts only after you approve it. Every inverter is tested under simulated operating conditions before delivery.