SMA SC 500HE-20 - Manual (Page 82)

10 Troubleshooting SMA Solar Technology AG
82 SCxxxHE-20-BE-BEN111210 Operating Manual
75xx Cause of error
One of the internal fans or stack fans is defective.
Error message 7501
< Fan failure inside >
Error message 7502
< Fan failure inside 2 >
Error message 7503
< Fan failure heat sink >
Error message 7507
< Fan fault motor protection switch >
Measure
< Check inverter circuit and ventilation >
– Make sure the fans are working properly.
– Clean the fans.
– Clean dirty fan inlets and the ventilation plates.
76xx Cause of error
Internal error of the Sunny Central.
Error message 7601
< Communication failure IPC >
Error message 7602
< Communication failure CAN >
Measure
< Check inverter circuit and communication >
– Contact the SMA Service Line.
Error no. Cause of error, error message and corrective measure