11 Troubleshooting
SMA Solar Technology AG
Operating manual
SBSxx-10-BE-en-11
109
Event number
Message, cause and corrective measures
7624
Communication to battery interface module disrupted
The communication between the inverter and the battery interface module on
the communication assembly is disrupted.
Corrective measures:
• Ensure that the ribbon cable is in perfect condition and securely in place.
• If the ribbon cable is in perfect condition and firmly plugged in the jack,
contact the Service.
7701
Grid disconnection point
Grid relay of the inverter defective.
Corrective measures:
• Contact Service.
7702
Relay defect
Grid relay of the inverter defective.
Corrective measures:
• Contact Service.
7703
24h relay test
Relay test failed.
Corrective measures:
• If this message is displayed again, contact the Service.
8003
Active power limited derating
The inverter has reduced its power output for more than ten minutes due to ex-
cessive 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 tempe45°C has not been exceeded.
• Ensure that the inverter is not exposed to direct solar irradiation.