DC component measured in the grid too high

What does 408 mean?

The inverter has detected an excessive direct current (DC) component being injected into the alternating current (AC) grid. This indicates a potential internal inverter fault and can be problematic for grid stability and other connected equipment.

• Internal fault in the inverter's DC-AC conversion stage
• Malfunction of the DC injection monitoring circuit

Click steps to track your progress.

1. 1

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