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Please help our ac compressor wont come on

Please any help would be great our ac compressor wont come on the fan does come on we replaced the capacitor three weeks ago cause the fan wouldnt come on now the compressor wont please help. It does sound as if the compressor does try to come on it hums then turns off

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Hi, did you change, capacitor for compressor too. check compressor overload switch,(relay) normally located on compressor terminals, (where you connect wires to compressor) that's the device that goes klix when compressor goes to start, could be faulty, or maybe low voltage from your mains(house panel) check line voltage, with digital volt meter, some compressor won't start if voltage drops to low, yes fan will work, could also be, your compressor has a lock rotor, (hard start), you can buy a compressor hard start kit, from appliance store, and try to start compressor, or maybe compressor internal winding, are damage, especially now in summer, when you got a lots of voltage drops, check compressor winding, check compressor winding for short circuit, remove cover on compressor, remove 3 wires from compressor terminal, use ohm meter, put one tester lead on copper tubing that's connected to compressor, and next lead to compressor terminal, one by one, if you get beep (continuity) from anyone of those compressor terminal, you got a short- circuit in compressor, you will have to replace compressor, but if there's no short, them try hard- start kit, replace overload relay, you will see it at compressor terminal location, after you remove cover. good luck.

Posted on Aug 10, 2009

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And don't forget that if there is a start-relay is replaced and or a start capacitor to do a job that will forget the most people to also clean the axles and relubrication of the bearings of the fans , It prevents more problems

Posted on Jul 01, 2016

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Look for 1 more capacitor, and you have a 50/50 chance it will work again. it's a starter capacitor.

Posted on Aug 10, 2009

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