Question about LG LSC183VMA Split System Air Conditioner

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LG ac M483CS not cooling

It's a multi-split unit, 2 are 12,000 BTU's and one 24,000 BTU's, the 24k BTU is working perfectly, but, the other two have the same compressor and they doesn't get to cool...when i turn on any of the 12k BTU intdoor unit the power led begins to flash, it flashes two times an then is off for about 3 seconds andthen flashes again teo more times and it stays doing it all the time the in-d unit is turn on,t he indoor unit fan is working but the compressor doesn't, i believe that a contactor is not working properly because, if i disconnect the PCB of the outdoor unit while it is connected to the power and the 3 in-d units are turned off, one of the contactors returns to it's off position and then if i turn on any of the not cooling in-d units they will work and cool properly for a couple of months...it's the contactor broken or i will need to replace the PCB...i hope the contactor is broken...

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  • Ken Bledsoe May 11, 2010

    Sounds like the board is bad. When you say it runs for couple of months normal. If the contactor was bad it would not work at all.

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It is possible that the contactor points have carbon or dust deposits causing an intermittent condition or bad connection. Why not try replacing the contactor?

Posted on Mar 04, 2009

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