Error Code 38 — IPM temperature sensor fault or momentary power failure

What does 38 mean?

This code indicates a problem with the temperature sensor located near the IPM's heat sink, or a brief loss of power was detected. This sensor helps protect the IPM from overheating.

• Faulty IPM temperature sensor
• Loose or damaged sensor wiring
• Momentary power interruption
• Bad sensor connection

Click steps to track your progress.

1. 1

   Check the IPM temperature sensor wiring connection at Plug CN-8.

2. 2

   Ensure the sensor is properly seated and the wiring is undamaged.

3. 3

   Check if the unit experienced a momentary power failure.

4. 4

   Replace the sensor if it is found to be faulty.