Error E1 / Indoor Red LED Flashes 3 times — Remote controller wiring open circuit

What does E1 / Indoor Red LED 3 flashes mean?

Error code E1, indicated by the indoor unit's red LED flashing three times, means there is an open circuit in the remote controller's wiring. This prevents proper communication.

• Remote controller wiring open circuit

Click steps to track your progress.

1. 1

   Turn off the main power supply to the air conditioner.

2. 2

   Carefully check all connections of the remote controller wiring for any disconnections or breaks.

3. 3

   Ensure that all terminals are properly seated and secure.

4. 4

   If the wiring appears damaged, it may need to be replaced by a qualified technician.

5. 5

   Restore power and check if the error clears.