12 Troubleshooting
SMA Solar Technology AG
Operating manual
SHP-US-20-BE-en-10
71
Event number
Message, cause and corrective measures
7801
Error overvoltage protector
One or more surge arresters have tripped or one or more surge arresters are
not inserted correctly.
Corrective measures:
• Make sure that the surge arrester is inserted correctly.
• If surge arresters have tripped, replace the tripped surge arresters with
new surge arresters.
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 tempe35°C (95°F) 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.
8708
Timeout in communication for active power limitation
Communication to the system control absent. Depending on the fall-back set-
ting, either the last received values will be retained or the active power will be
limited to the set percentage value of the inverter nominal power.
Corrective measures:
• Ensure that the connection to the system manager is intact and that no
cables are damaged or that no plugs have been pulled.
Summary of Contents for SHP 125-US-20
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