- Error code
- 2 codes
- Category
- Grid underfrequency
- Manufacturer
- REFUsol
1What the error means
The following error codes of REFUsol inverters belong to the same fault family: grid under-frequency. Find the code shown by your inverter in the table and see what it means.
2Possible causes
- Grid frequency drop
- Weak grid or operation on a generator
- Wrong country setting
3What to do
- Check the country setting and the frequency limits.
- If it appears constantly on a stable grid, check the measuring circuit.
The codes in detail
| Code | What it means |
|---|---|
| 0x090009 | Under-frequency — the grid frequency dropped below the limit |
| 0x0A0016 | Under-frequency — the grid frequency dropped below the limit |
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.