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Heating, Air Conditioning, Fridge, HVAC/Air handler motor is noisy after replacing run capacitor

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Question
Hi Jim,
My air handler motor stopped working at home. I called a tech who suspected that run capacitor got bad and so he replaced it. For first 6 hours, it seemed to run fine although with some noise however later the noise level increased and I noticed that at times, motor was not running as if not enough torque. I then called York to get specs of capacitor originally on the unit (my tech took away the old part with him) and was told that it was 7.5 microfarad. What I have now is 6 microfarad one which also has a 100K resistor mounted in parallel (which was not there on my old one as I recall).

Does the problem I have is because of motor itself or lower microfarad rating capacitor and/or 100K resistor mounted in parallel with the capacitor?

i will greatly appreciate a response.

Answer
Kamal,
All I know about that stuff is replace it with the same as was on it original or with what ever is a certified replacement.
Check the schematics pasted on the blower compartment door to see what is called for.
Call the "tech" and ask them to stand behind there service or else?

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Jim Barnhart

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Fifty + years conditioning the air.

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Answer questions about , residential and commercial. Answer questions about sheet metal fabrication. Fifty years plus experience. No answers for oil equipment, No answers for kitchen appliances, No answers for laundry appliances, I don't specialize in one particular area of the HVAC area, I'm more of a General Practitioner, Limited in refrigeration/

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Hands on since 1950

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