6 Troubleshooting
Event number
Message, cause and corrective measures
3801
3802
DC overcurrent > Check generator
3803
Overcurrent at the DC input. The inverter briefly interrupts feed-in operation.
3805
Corrective measures:
3806
• If this message is displayed frequently, ensure that the PV array has been
3807
3808
6002 to 6412
Self diagnosis > Interference device
The cause must be determined by the Service.
Corrective measures:
• Contact Service.
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
• Ensure that the inverter has sufficient ventilation.
• Ensure that the ambient temperature +35°C (95°F) has not been
• Ensure that the inverter is not exposed to direct solar irradiation.
6512
Minimum operating temperature not reached
The inverter will only recommence grid feed-in once the temperature has
reached at least −25°C.
6603
6604
Self-diagnosis > Overload
The cause must be determined by the Service.
Corrective measures:
• Contact Service.
44
STP33-62-US-41-BA-en_es-10
correctly rated and wired.
the top using a soft brush.
exceeded.
SMA Solar Technology AG
User Manual