Sunny Boy User Manual

6 Troubleshooting
SMA Solar Technology AG
User ManualSBxx-US-1XP-41-BA-en-1154
Event number Message, cause and corrective measures
4301
Electric arc detected > Check DC generator
The inverter has detected an electric arc. A detected electric arc causes the in-
verter to interrupt feed-in operation for a short time and to resume the feed-in
operation automatically.
Corrective measures:
• Check the PV array.
6512
Minimum operating temperature not reached
The inverter will only recommence grid feed-in once the temperature has
reached at least −25°C.
6701
6702
Communication disturbed
Error in the communication processor, the inverter continues feeding in, how-
ever. The cause must be determined by the Service.
Corrective measures:
• If this message is displayed frequently, contact the Service.
6803
Self-diagnosis > Input A defective
Corrective measures:
• Check whether a string is connected to input A. If a string that once was
connected is not used anymore, the string-failure detection must be reset.
• Contact the Service.
6903
Self-diagnosis > Input B defective
Corrective measures:
• Check whether a string is connected to input B. If a string that once was
connected is not used anymore, the string-failure detection must be reset.
• Contact the Service.
7106
Update file defect.
The update file is defective. The update failed. The inverter continues to feed
in.
7110
No update file found
No new update file was found on the SD memory card. The update failed.
The inverter continues to feed in.
7112
Update file successfully copied