10 Troubleshooting
SMA Solar Technology AG
Operating manual STP15-25TL-30-BE-en-17 61
Event number Message, cause and corrective measures
6603
6604
Self-diagnosis > Overload
The cause must be determined by the Service.
Corrective measures:
• Contact the service.
6606
Interference device
The cause must be determined by the Service.
Corrective measures:
• Contact the service.
6701
6702
Communication disturbed
The cause must be determined by the Service.
Corrective measures:
• Contact the service.
6801
6802
Self-diagnosis > Input A defective
The cause must be determined by the Service.
Corrective measures:
• Contact the service.
6901
6902
Self-diagnosis > Input B defective
The cause must be determined by the Service.
Corrective measures:
• Contact the service.
7001
7002
Sensor fault fan permanently on
The cause must be determined by the Service.
Corrective measures:
• Contact the service.