Description - PV1 and PV2 insulation resistance to the ground exceeds the set value.
Troubleshooting:
- Check whether the PV connection cables are intact.
- Check whether the ambient humidity of PV components is too high.
- Check whether the "PE" cable and the N cable are well-contacted.
- Wait until the inverter reversers to normal.
- Contact Sungrow if fault reoccurs.