Upper OPERATION INDICATOR lamp stays ON for 3 seconds (with beep) then blinks — Indoor unit abnormal (recall function)

What does Upper lamp ON 3s (with beep) then blinks 0.5s mean?

When you activate the failure mode recall function, if the upper lamp on the indoor unit stays ON for 3 seconds with an accompanying beep, and then starts blinking at 0.5-second intervals, it indicates an abnormality in the indoor unit.

• An abnormal condition has been detected in the indoor unit.

Click steps to track your progress.

1. 1

   Note the blinking pattern of the upper lamp displayed.

2. 2

   Refer to the 'Table of indoor unit failure mode recall function' (section 10-2.2) for specific indoor unit fault codes.

3. 3

   Release the failure mode recall function by turning off the main power supply and turning it on again, or by pressing the remote controller's RESET button.