E07 — Communication Error between Remote Wired Controller and Indoor Unit

What does E07 mean?

The indoor unit is not receiving correct data from the remote wired controller for 4 consecutive minutes, indicating a communication breakdown with the controller.

• Loose or damaged wiring to the remote wired controller.
• A faulty remote wired controller.
• Interference affecting the communication signal.

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 check if the error code clears.

4. 4

   If the error persists, contact a qualified service technician to inspect the controller's wiring and the controller itself.