OPERATION INDICATOR lamp blinks with no beep — Outdoor unit is abnormal

What does OPERATION INDICATOR lamp blinks with no beep (outdoor abnormal) mean?

When recalling failure modes, if the left lamp of the OPERATION INDICATOR blinks at 0.5-second intervals with no beep, this indicates an abnormality in the outdoor unit. This pattern helps identify the specific problem.

• Malfunction within the outdoor unit components or sensors.
• An error that has been detected and stored in the system's memory.

Click steps to track your progress.

1. 1

   Observe the specific blinking pattern (number of blinks followed by a pause) of the left OPERATION INDICATOR lamp.

2. 2

   Consult the 'Table of outdoor unit failure mode recall function' (in the outdoor unit service manual) to match the blink pattern with the specific abnormal point.

3. 3

   Ensure to check at least 2 consecutive blinking cycles to correctly identify the fault.