E42 - Abnormally high current detected in compressor

What does E42 mean?

Abnormally high current has been detected in the compressor, indicating it is working too hard or experiencing an electrical fault. This is a protective shutdown.

• Overload on the compressor.
• High system pressure.
• Compressor electrical malfunction.
• Low voltage supply.

Click steps to track your progress.

1. 1

   Turn off the air conditioning unit at the main power supply.

2. 2

   Wait for 30 seconds to allow the system to reset.

3. 3

   Check the outdoor unit for any signs of obstruction to the fan or coils.

4. 4

   If the error reappears, contact a qualified technician to diagnose the compressor.