EC54 — Compressor discharge temperature sensor TP open circuit or short circuited

What does EC54 mean?

The temperature sensor (TP) for the compressor discharge line is either not connected (open circuit) or has a short circuit. This prevents accurate temperature readings.

• Damaged sensor wire (open or short)
• Faulty compressor discharge temperature sensor
• Loose connection at the sensor or control board

Click steps to track your progress.

1. 1

   Inspect the wiring of the compressor discharge temperature sensor for breaks or shorts.

2. 2

   Verify the sensor's connections at both the sensor and the main control board.

3. 3

   Test the sensor's resistance and continuity as per the manual's guidelines.

4. 4

   Replace the sensor or repair wiring if a fault is found.