Left/Upper lamp blinks continuously — Indoor unit abnormality

What does Left/Upper lamp blinks (continuous) mean?

The left (or upper) lamp on the Operation Indicator blinks continuously at 0.5-second intervals. This signifies an abnormality within the indoor unit.

• Internal fault in the indoor unit
• Component failure within the indoor unit
• Software issue on the indoor control board

Click steps to track your progress.

1. 1

   Note the specific blinking pattern and refer to the troubleshooting table for indoor unit faults.

2. 2

   Try resetting the unit by cycling the power off and on.

3. 3

   If the blinking persists, professional service is recommended to diagnose the specific indoor unit fault.