- Error code
- Fac-Srr
- Category
- Grid frequency
- Manufacturer
- SMA
- Models
- Sunny Boy (SB)
1What the error means
The grid frequency went out of range during operation. The inverter disconnected and will reconnect when the frequency returns.
2Possible causes
- Grid frequency oscillation
- Operation on a generator
- Measurement fault
3What to do
- Note whether it appears at specific hours, when the grid carries heavy loads.
- If it appears constantly on a stable grid, have the inverter 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.