Arc Detector self-test failed

What does 245 mean?

The arc detector, a safety critical component, has failed its internal self-test. This failure indicates a malfunction of the arc detection circuitry, and the inverter will immediately disconnect itself from the grid to ensure safety.

• Internal malfunction or fault within the arc detector hardware.
• Corruption of the arc detector's self-test routine.
• Damaged arc detector sensor or associated electronics.

Click steps to track your progress.

1. 1

   Perform an AC reset by switching the automatic circuit breaker off and then on again.

2. 2

   After the AC reset, the arc detector self-test will be automatically repeated. If it fails again, notify a Fronius-trained service engineer.