Possible hardware fault

What does 426 - 428 mean?

The inverter has detected a general internal hardware malfunction. This range of codes indicates that a specific hardware component may be faulty, affecting the inverter's operation.

• Failure of an unspecified internal hardware component
• Damage to PC boards or internal circuitry

Click steps to track your progress.

1. 1

   If this status code is displayed all the time, notify a Fronius-trained service engineer.