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I have a command aire geothermal unit the fan will run when…

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Hi i have a command...
Hi i have a command aire geothermal unit the fan will run when calling for heat but the heat pump will not kick on i hear a humming sound. I can kick the breaker for 20 minutes and it will run fine
Submitted: 2 years ago.Category: HVAC
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Answered in 57 minutes by:
2/26/2016
HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago
gotoman for ac
gotoman for ac, HVAC Technician
Category: HVAC
Satisfied Customers: 5,357
Experience: 51 years of experience install design and repair of all makes and models of AC
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Sounds like a weak run capacitor. Are you comfortable working with wiring. Russ

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Customer reply replied 2 years ago
I am comfortable with that
Customer reply replied 2 years ago
How will I know which one is the right one to change?
HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago

Open wiring panel and look on capacitor and get size. It will say something like 35uf 370 or 440 VAC. That is size of capacitor you need. Russ

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HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago

Capacitor is silver round component. Russ

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Customer reply replied 2 years ago
Ok thanks
HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago

You are welcome. Russ

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HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago

Capacitor get weak and cause starting problems with compressor. Sometimes this problem is sign of compressor going out. Try the capacitor first. If you have anymore questions just get back to me. Also just google that capacitor size and several sites will come up. Just get cheapest cap. Russ Thanks

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