Question about LG LSC121PMA Split System Air Conditioner

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LG Split system (ceiling cassette)

My unit has a wired remote (which works) and a wireless remote (which doesn't. The LCD screen in the wireless remote shows all the expected symbols and reacts to buttons being pressed. The main unit in the ceiling simply gives five beeps (its always five) and ignores the wireless remote.

The unit is brand new and the wireless remote has never worked. LG have not so far been very helpful and my installer ditto.

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  • John Wise
    John Wise Jan 15, 2009

    The remote is transmitting, the beeps come from the main unit in the ceiling, and I have tried fresh batteries and the reset button. As they are clearly communicating something I wondered if anyone knew what five beeps meant. From a choice of taking back the remote or the main unit I know what one I prefer to carry.

    I will try the power reset you suggest but as we are fairly remote our power tends to be intermittent in the early hours of the morning most nights, so I do not expect much.


  • acdokter May 11, 2010

    Error code 03 - Remote controller error

  • Anonymous Mar 22, 2014

    whirlpool 1.5 ton split ac shows f2 in display when pressing on button in remote



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Check your remote control by using your camera or cellphone camera as your eyes. Point the remote control to the camera and "on" the remote control. If no lights emits in the remote control means that your remote control is defective If lights emits then the remote control is ok. Try also to locate the reset or rst button on the remote control if available and reset it, then try. If it wont work may be the receiver board in the unit is defective.

Posted on Jan 14, 2009

  • Felizardo Erilla
    Felizardo Erilla Jan 14, 2009

    Check also if no error code present in the unit, if error code is present try to reset the unit by disconnecting the power supply for 10sec. and test.



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