Functional incompatibility (PC boards)

What does 481 mean?

This fault indicates that one or more PC boards in the inverter are not compatible with each other, often due to a replacement of a PC board. This prevents the inverter from feeding energy into the grid.

• Incompatible PC boards installed in the inverter
• Incorrect PC board replacement

Click steps to track your progress.

1. 1

   Update the inverter firmware to ensure compatibility across installed PC boards