E42 - Abnormally high current detected in compressor

Was bedeutet E42 ?

This error indicates that the compressor in the outdoor unit is drawing an abnormally high electrical current, which can lead to overheating or damage.

• Compressor overload.
• Refrigerant system issues (e.g., liquid refrigerant returning to compressor).
• Electrical issues with the compressor motor or starting components.
• Mechanical binding within the compressor.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Turn off the main power to the AC system at the circuit breaker and allow the unit to cool down.

2. 2

   Check the outdoor unit for any signs of physical damage or unusual noises from the compressor.

3. 3

   Contact a qualified HVAC technician to diagnose the cause of the high current draw, which may involve checking refrigerant charge and electrical components.

4. 4

   Do not repeatedly attempt to restart the unit as this can cause further damage.