E1 - Room temperature sensor failure

What does E1 mean?

The indoor unit displays E1, meaning the sensor that measures the room temperature is not working correctly.

• Faulty room temperature sensor
• Loose connection of the sensor wiring
• Damaged wiring to the sensor
• Indoor unit PCB issue

Click steps to track your progress.

1. 1

   Turn off the AC unit at the main power supply and wait a few minutes, then restart it.

2. 2

   Ensure nothing is blocking the air intake or return vents near the indoor unit, as this can affect sensor readings.

3. 3

   If the error continues, contact a qualified technician to check or replace the sensor.