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Old 06-06-2019, 05:20 PM   #1
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AC compressor not kicking on


I have an in wall Kenmore 240v unit. When I turn it on all functions work but the compressor doesnt kick on. It buzzes for a while every couple minutes and eventually works. What should I look for?
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Old 06-06-2019, 06:15 PM   #2
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Re: AC compressor not kicking on


Check the run capacitor and wires to the compressor

ohm out the compressor windings (https://www.lennoxpros.com/news/the-...ase-compressor)

If it doesn't start with good windings and a good capacitor, you can try a hard start kit like http://www.supco.com/eclass.htm.

If it doesn't start with a hard start, the compressor is finished and it's wise to replace the unit.
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I am not in the business of any trade I give advice on. I have non-professional hvac experience + good knowledge of theory. Attempt repairs at your own risk. Never jump out safeties - especially pressure switches - on a furnace for testing with fuel supply on; use a meter. Do not troubleshoot with live line voltage present unless there's no alternative.
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Old 06-12-2019, 09:18 AM   #3
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Re: AC compressor not kicking on


Did you find the problem?
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