476 Supply voltage for driver too low - Internal power supply issue.

What does 476 mean?

The supply voltage for an internal driver component within the inverter is too low. This indicates a problem with the inverter's internal power supply.

• Internal power supply unit fault.
• Component failure.
• Internal wiring issue.

Click steps to track your progress.

1. 1

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

2. 2

   Observe if the inverter attempts to restart and the code clears.

3. 3

   If this status code persists, contact a Fronius-trained service technician.