Sensor fault from heat pump 277 — Compressor is blocked: Evaporator sensor fault

• Open circuit or short circuit on sensor input
• Defective sensor

Click steps to track your progress.

1. 1

   Check the evaporator sensor (Tho-R) for damage.

2. 2

   Ensure the sensor is properly connected.

3. 3

   Test the sensor's resistance and signal.

4. 4

   Replace the sensor if defective.