Heating, Ventilation, and Air Conditioning (HVAC)

dwfman · #1 (**permalink**) 03-08-2011, 02:50 PM

Fan runs, compressor will not start unless I jumper across R-Y Comp switch. Then unit runs fine until thermo shuts comp off. Comp will not restart when thermo lowered. Thermistor ohm's ok. Cap checked out ok, compressor sounds fine when I jump start it. The fuse for the R-Y Comp switch is ok. This unit has two circuit boards, about $40 each. I could justify replacing one of them but not both. Any best guesses on which board the problem lies? Thanks

dwfman · #2 (**permalink**) 03-08-2011, 02:57 PM

Quote:

Originally Posted by dwfman

Fan runs, compressor will not start unless I jumper across R-Y Comp switch. Then unit runs fine until thermo shuts comp off. Comp will not restart when thermo lowered. Thermistor ohm's ok. Cap checked out ok, compressor sounds fine when I jump start it. The fuse for the R-Y Comp switch is ok. This unit has two circuit boards, about $40 each. I could justify replacing one of them but not both. Any best guesses on which board the problem lies? Thanks

Complete model number is HBLG1203R

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LG Hampton Bay Window AC

Heating, Ventilation, and Air Conditioning (HVAC)

Fan runs, compressor will not start unless I jumper across R-Y Comp switch. Then unit runs fine until thermo shuts