- Error code
- DI MEAS
- Category
- Residual current measurement
- Manufacturer
- SMA
- Models
- Sunny Boy (SB)
1What the error means
Fault in the residual current measurement. The inverter either measured a residual current out of range, or cannot trust its sensor.
2Possible causes
- Ground fault in the PV generator
- Faulty residual current sensor in the inverter
3What to do
- Check the PV generator for moisture and ground faults.
- If the fault remains with the PV generator disconnected, the inverter's sensor needs repair.
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.