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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Outside fan is working fine but I hear the compressor try to

Customer Question

outside fan is working fine but I hear the compressor try to turn on for a few seconds then stops and fan stays on
Submitted: 2 years ago.
Category: HVAC
Expert:  gotoman for ac replied 2 years ago.
If compressor is humming and trying to start. Sounds like a bad capacitor . Open access panel and you will see a round silver component. That is capacitor and size is on side. It will say something like 35 uf 5 uf 440 VAC. Replace this component. I have replaced twice as many capacitors this year as any another year.
Customer: replied 2 years ago.
Ok let me check that out
Customer: replied 2 years ago.
I have an old capacitor that still works but my unit has 5/35 uf and the on I have is a 5/45 uf would that work or do I have to stick to exact one?
Customer: replied 2 years ago.
these are the two items my unit has
Expert:  gotoman for ac replied 2 years ago.
Sorry for wait bad storm in area. Try that capacitor and see if it will start the compressor ok. If it runs ok Bad capacitor. You can use that one till you get a new one. Russ
Customer: replied 2 years ago.
I'm sorry I forgot to mention the no. working capacitor is a 440 and the one I want to test is a 370 does that matter?
Expert:  gotoman for ac replied 2 years ago.
No that does not matter. Russ be offline for 30 minutes.