E2 — Indoor coil sensor failure

What does E2 mean?

The sensor measuring the temperature of the indoor coil (evaporator) is not working correctly, which can affect the unit's ability to cool or heat efficiently.

• Pipe temperature sensor failure
• Indoor PCB failure

Click steps to track your progress.

1. 1

   Turn off the air conditioner at the main power switch or circuit breaker.

2. 2

   Wait for at least 30 seconds, then turn the power back on.

3. 3

   Ensure the indoor unit is not obstructed and airflow is normal.

4. 4

   If the error persists, contact a qualified technician.