SMA SC 250U - Manual (Page 35)

SMA America, LLC Error Diagnosis
User Manual SCUS-BE-BUS120514 35
65 Error text:
Overtemperature
Cause of fault:
The ambient temperature is too high.
Corrective measures:
• Check functionality of fan.
• Clean the fan.
• Clean dirty fan inlets and the ventilation plate.
70 Error text:
Temperature sensor failure
Cause of fault:
• Cable break
• Short circuit
• Internal fault of the Sunny Central.
Corrective measures:
• Check the cabling of the temperature sensor.
• Contact the SMA Serviceline.
75 Error text:
Fan failure
Cause of fault:
The ambient temperature is too high.
Corrective measures:
• Check functionality of fan.
• Clean the fan.
• Clean dirty fan inlets and the ventilation plate.
76 Error text:
Communication failure
Cause of fault:
Internal fault of the Sunny Central.
Corrective measures:
• Contact the SMA Serviceline.
No. Description