Failure Recall Mode active: Operation Indicator lamp blinks 0.5s ON/OFF with beeps — General indoor unit abnormality

What does Recall: 0.5-sec blink with beeps mean?

When the failure mode recall function is activated, if the indoor unit's Operation Indicator lamp blinks at 0.5-second intervals with matching beeps, it indicates a general abnormality within the indoor unit. This signal helps in confirming that an indoor unit fault has been memorized.

• An indoor unit internal error has been detected and memorized.

Click steps to track your progress.

1. 1

   To activate the failure recall function, ensure the unit is powered ON. On the remote controller, press and hold both the OPERATION SELECT button and the TEMP (up arrow) button. While holding these, press the RESET button. Release the RESET button first, then continue holding the other two for another 3 seconds.

2. 2

   Confirm all indicators on the remote's LCD screen are displayed, then release all buttons. Press the OPERATE/STOP (ON/OFF) button, pointing the remote at the indoor unit.

3. 3

   Once the recall mode is active and this pattern is observed, refer to the indoor unit failure mode table (section 10-2.2 in the full manual) to pinpoint the exact fault.

4. 4

   To exit the recall function, turn OFF the main power supply to the air conditioner and turn it ON again, or press the RESET button on the remote controller.