12 Troubleshooting
SMA Solar Technology AG
Operating manual
SB55-LV-JP-41-BE-en-13
76
Event number
Message, cause and corrective measures
7702
Relay defect
Grid relay of the inverter defective.
Corrective measures:
• Contact the Service.
7703
24h relay test
Relay test failed.
Corrective measures:
• If this message is displayed again, contact the Service.
8003
Active power limit Temperature
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 tempe40°C has not been exceeded.
• Ensure that the inverter is not exposed to direct solar irradiation.
8101
8102
8103
8104
Communication disturbed
The cause must be determined by the Service.
Corrective measures:
• Contact the Service.
9002
SMA Grid Guard code invalid
The SMA Grid Guard code entered is incorrect. The operating parameters are
still protected and cannot be changed.
Corrective measures:
• Enter the correct SMA Grid Guard code.
