E46 — Communication Error with Driver PCB

What does E46 mean?

This error indicates that the module board signal is not being received or contains incorrect data for 30 consecutive seconds. The system will automatically restore itself if correct data is received.

• Loose or damaged communication wiring to the driver PCB.
• Interference affecting the communication signal.
• A temporary fault with the driver PCB or the main PCB.

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 inspect the communication wiring and PCBs.