What should I do if the remote control stops working after changing the batteries?

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Accepted Answer

If your remote control is unresponsive after changing the batteries, here are some points to check:

Checking the batteries

Use two new R03/LR03 (AAA type) batteries from a reliable brand (Energizer, Duracell, etc.).
Ensure that the batteries are properly inserted in the compartment and that the metal contacts are clean.
Clean both ends of the batteries with a dry cloth to remove any residue.
Check the orientation of the batteries (+/-) in the compartment - it should match the engraved symbols.

Resetting the remote control

Press the RESET button located on remote control B for 3 seconds.
The indoor unit should emit a beep and the LED screen should light up.

If the problem persists

If after these checks the remote control remains inoperative, the issue may be with the receiving circuits of the indoor unit. Test the air conditioner's operation using the physical buttons located on the indoor unit (present on most models). If the unit responds to direct commands but not to the remote control, the IR receiver may be faulty and the remote control may need to be replaced.

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