Internal fault

What does 38 mean?

An internal fault has occurred within the frequency converter, indicated by a specific code number. This suggests a malfunction of the drive's internal circuitry or software. Such faults can lead to unpredictable behavior or complete operational shutdown, requiring expert diagnosis.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Inspect for loose or missing internal wiring.

2. 4

   Note the specific internal fault code number and contact the Danfoss supplier or service department for further troubleshooting.