E1 / 3 Red Flashes - Remote control communication error

What does E1 / 3 Red Flashes mean?

The remote control displays E1, and the indoor unit's red LED flashes three times (while the green LED keeps flashing). This indicates a problem with the remote control communication circuit.

• Poor connection or breakage of the remote control wire
• Noise interference in the remote control wire
• Defective remote control PCB
• Defective indoor unit control PCB

Click steps to track your progress.

1. 1

   Check the remote control for any signs of physical damage or battery issues.

2. 2

   Inspect the wiring connections for the remote control to ensure they are secure and undamaged.

3. 3

   If possible, try to reset the unit by turning off the power at the main breaker for a few minutes, then turning it back on.

4. 4

   If the problem continues, a qualified technician should inspect the wiring for breakage or noise, and check for a defective PCB.