DC module temperature sensor faulty

What does 406 mean?

The temperature sensor monitoring the DC power module within the inverter is reporting a fault. This can lead to inaccurate temperature readings and potentially affect thermal management.

• Malfunction or damage to the internal DC module temperature sensor
• Loose connection of the temperature sensor wiring

Click steps to track your progress.

1. 1

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