Event number Message, cause and corrective measures
7701to 7703
Self diagnosis > Interference device
The cause must be determined by the Service.
Corrective measures:
• Contact the Service (see Section17 "Contact", page91).
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 temperature 40°C has not been exceeded.
• Ensure that the inverter is not exposed to direct solar irradiation.
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 (e.g.
SunnyHomeManager) is intact and that no cables are damaged or that
no plugs have been pulled.
8709
Timeout in communication for reactive power spec.
Communication to the system control absent. Depending on the fall-back set-
ting, either the last received values will be retained or the reactive power will
be set to the set value.
Corrective measures:
• Ensure that the connection to the system manager (e.g.
SunnyHomeManager) is intact and that no cables are damaged or that
no plugs have been pulled.
8710
Timeout in communication for cos-Phi spec.
Communication to the system control absent. Depending on the fall-back set-
ting, either the last received values will be retained or the displacement power
factor will be set to the set value.
Corrective measures:
• Ensure that the connection to the system manager (e.g.
SunnyHomeManager) is intact and that no cables are damaged or that
no plugs have been pulled.
12 Troubleshooting
SMA Solar Technology AG
Operating Manual 73SB15-25-1VL-40-BE-en-11
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