- Error code
- W003
- Category
- Grid fault
- Manufacturer
- ABB / FIMER
1What the error means
Grid failure with incorrect grid parameters. The inverter did not find the grid within the limits of the selected country setting.
On the display or in the monitoring software it appears as Grid Fail.
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.
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.