E06 — Communication Error between Outdoor Unit and Indoor Unit

What does E06 mean?

The indoor unit is not receiving communication signals from the outdoor unit for more than 2 minutes, indicating a break in communication.

• Loose or damaged communication wiring between the indoor and outdoor units.
• Interference affecting the communication signal.
• A fault in the control board of either the indoor or outdoor unit.

Click steps to track your progress.

1. 1

   Turn off the main power to the Haier unit at the circuit breaker.

2. 2

   Wait for at least 30 seconds.

3. 3

   Restore power to the unit and observe if the error clears.

4. 4

   If the error persists, contact a qualified service technician to check the communication wiring and control boards.