SMA SUNNY TRIPOWER CORE1-US - Page 42

7 Troubleshooting
SMA Solar Technology America LLC
User ManualSTP50-US-40-BA-en-1042
Event number Message, cause and corrective measures
3501
Insulation failure > Check generator
The inverter has detected a ground fault in the PV array.
Corrective measures:
• Check the PV system for ground faults (see Section7.3, page53).
3701
Resid.curr.too.high > Check generator
The inverter has detected a residual current due to temporary grounding of the
PV array.
Corrective measures:
• Check the PV system for ground faults (see Section7.3, page53).
3801 to 3805
DC overcurrent > Check generator
Overcurrent at the DC input. The inverter briefly interrupts feed-in operation.
Corrective measures:
• If this message is displayed frequently, ensure that the PV array has been
correctly rated and wired.
6002 to 6412
Self diagnosis > Interference device
The cause must be determined by the Service.
Corrective measures:
• Contact the Service (see Section10 "Contact", page60).
6502
Self-diagnosis > Overtemperature
The inverter has switched off due to excessive temperature.
Corrective measures:
• Clean the cooling fins on the rear of the enclosure and the air ducts on
the top using a soft brush.
• Ensure that the inverter has sufficient ventilation.
• Ensure that the ambient temperature +35°C (95°F) has not been
exceeded.
• Ensure that the inverter is not exposed to direct solar irradiation.