E0 - 2 red flashes, 3 green flashes — Remote controller communication error

What does E0 mean?

This fault signifies a communication error between the indoor unit and the remote controller. Check wiring, connections, and master/slave settings if applicable.

• Faulty wiring to the remote controller
• Loose connections
• Incorrect master/slave settings
• Remote controller issue

Click steps to track your progress.

1. 1

   Check all wiring and connections between the indoor unit and the remote controller.

2. 2

   Verify that the master/slave settings are correct if multiple systems are connected.

3. 3

   Test the remote controller if possible.

4. 4

   Reset the system power.