Upper OPERATION INDICATOR lamp blinks every 0.5 seconds with a beep — General indoor or outdoor unit abnormality

What does Upper lamp blink 0.5s + Beep mean?

The upper lamp on the indoor unit's OPERATION INDICATOR blinks rapidly at 0.5-second intervals, accompanied by a beep. This indicates that either the indoor or outdoor unit is experiencing an abnormal condition.

• An abnormal condition has occurred in either the indoor or outdoor unit.

Click steps to track your progress.

1. 1

   Note the blinking pattern for further diagnosis of the specific fault.

2. 2

   Try resetting the unit by turning OFF the power supply for a few minutes, then turning it ON again.

3. 3

   Press the RESET button on the remote controller.

4. 4

   If the issue persists, refer to the detailed troubleshooting tables in the service manual or contact a service technician.