558 Function incompatibility - Incompatible PC boards in the inverter.

What does 558 mean?

This indicates that one or more PC boards inside the inverter are not compatible with each other, possibly after a replacement. This can lead to error displays or malfunctions in the inverter.

• Incompatible internal hardware components.
• Incorrect PC board replacement.

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 status code clears and the inverter operates normally.

3. 3

   If this status code keeps recurring, contact your system installer or a Fronius-trained service technician.