Question about LG Heating & Cooling
Sounds as though the compressor is trying to start, and then shuts off, then tries again. If this is the case...
Usually this results when the capacitor has gone bad and the compressor is unable to start or break free to run.
Basically a capacitor gives the compressor a "Bump" to allow the pistons to break-away from the stopped position. Once the compressor is operational, the capacitor circuit is dropped and the compressor functions as expected. When the capacitor goes bad, the pistons cannot move and the compressor over-amps and the internal, or external OL (overload) opens due to high amp draw. When the OL cools down it allows the compressor to try to start again. But as it cannot it will make a loud humming noise as if it were locked up.
Which brings me to my second solution.... the compressor is locked up mechanically. And the pistons have siezed or welded themselves stationary. If this is the case, and the capacitor checks out good, then the compressor will need to be replaced.
Posted on Sep 04, 2010
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Posted on Jan 02, 2017
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