Question about LG Heating & Cooling
Remove the front cover of the unit to expose the cooling coil. Put the unit on and observe if there will be formation of frost (ice) on the coil. If there's frost formation, the common cause is dirty cooling coil. Have it cleaned using an alkali base coil cleaner. If the coil is clean, then the problem is the fan motor. It might be turning slow due to copper loss. Have it replaced.
Posted on May 29, 2009
check outside unit large pipe should be cool or even very cold small pipe should be warm to touch that will eliminate some questions in order to solve problem also check circuit breaker for outdoor unit see if fan on outdooor unit is running and listen for compressor hum
Posted on Jul 02, 2009
Start the unit and go outside to see if the insulated pipe is sweating or cold, hot air should be discharging from top of outside unit. Since the breaker is not tripping, my best guess is the compressor is not operating. You might have to replace the capacitor.
If you can hear the compressor operating, then most
likely needs refrigerant
Posted on Jun 17, 2010
Testimonial: "Thanks for providing some additional clues and methods to pin down what needs replaced. Now I need to determine whether the run capacitor or the other part, for which I can't find the name, is at fault, unless the compressor is bad."
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