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    Rsheldon1978's Avatar
    Rsheldon1978 Posts: 1, Reputation: 1
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    #1

    May 30, 2009, 02:40 PM
    Carrier Condenser unit won't turn on
    I have a four year old HVAC system in my home, However when I turn on the A/C the outside condenser will not turn on, I can hear a humming sound, I had a friend who is an electrician check for power and that all checked out, if anyone could help I would be most appericative. Thanks everyone,

    Ron
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #2

    May 30, 2009, 06:21 PM

    If it is humming and it has power could be a number of thing, bad capasitor. Low on freon. If it is humming then the contactor is probably pulled in. Are you 100% sure you have 220 volts out there? Check the breaker and fuses in the disconnect outside.

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