Unit not operating properly or connecting to new outdoor unit — Memorized abnormal condition

What does Abnormal condition memorized mean?

The air conditioner may not operate correctly or may have issues connecting to a new low-standby-power outdoor unit if a previous abnormal condition is still memorized. It's crucial to clear the memory after repairs or when changing outdoor unit types.

• Previous fault condition is still stored in memory.
• Indoor unit connection information is not initialized for a new low-standby-power outdoor unit (e.g., after changing from MXZ to MUZ-EF·VE(H) series).

Click steps to track your progress.

1. 1

   Turn OFF the main power supply to the air conditioner.

2. 2

   Wait a few seconds, then turn the power supply back ON.

3. 3

   To release any active failure recall function, press the RESET button on the remote controller.

4. 4

   To delete a memorized abnormal condition (and reset connection info for low-standby-power models), point the remote controller at the indoor unit, press OPERATE/STOP (ON/OFF), then press the EMERGENCY OPERATION switch located on the indoor unit.