ALARM 38

Internal fault

Danfoss · VLT HVAC Drive High Power

What does ALARM 38 mean?

An internal fault has occurred within the frequency converter, indicated by a specific code number defined in Table 6.1. This signifies a malfunction in the drive's internal electronics or software, requiring further investigation to prevent potential damage.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Check for any loose or missing internal wiring.

  2. 4

    Note the displayed internal fault code number and contact Danfoss Service or the supplier for further assistance.

Source: Danfoss VLT HVAC Drive High Power
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