Internal Fault: Serial port initialization error

What does 38.0 mean?

The internal serial communication port failed to initialize upon power-up or during operation. This can prevent communication with the LCP or external serial devices, indicating a possible internal hardware or firmware issue with the control board.

Complete Troubleshooting Guide

1. 1

   Cycle power to the frequency converter.

2. 2

   If the fault persists after cycling power, contact your Danfoss supplier or Danfoss Service Department, providing the exact fault code.