POWER lamp 3 seconds ON then 0.5-second blink with no beep — Outdoor unit abnormality (recall mode)

What does POWER lamp 3s ON then 0.5s blink (no beep) mean?

When the unit is in failure mode recall function, the indoor unit's POWER lamp stays ON for 3 seconds without a beep, then blinks at 0.5-second intervals. This specific pattern indicates an abnormal condition in the outdoor unit.

• Outdoor unit abnormality

Click steps to track your progress.

1. 1

   Check the outdoor unit's blinking pattern.

2. 2

   Refer to the outdoor unit service manual to confirm the abnormal point.

3. 3

   Ensure to check at least two consecutive blinking cycles for accurate diagnosis.

4. 4

   Release the failure mode recall function by turning OFF the power supply and then turning it ON again.

5. 5

   Alternatively, press the RESET button on the remote controller to release the function.