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    car9172's Avatar
    car9172 Posts: 14, Reputation: 1
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    #21

    May 11, 2009, 05:15 PM

    Yes
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #22

    May 11, 2009, 05:19 PM

    Then I am not sure why the old t-stat had the jumper. The outdoor and the indoor will both have a transformer. That is why the one inside was getting hot you may have had double power on it.
    car9172's Avatar
    car9172 Posts: 14, Reputation: 1
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    #23

    May 11, 2009, 05:27 PM

    The one on the outside was hot . I cut the wires from the thermostat where they came into the outside unit, I have my 24v at that point. I reconnected them and have 0v at the contactor coil. The only thing between those two points is that transformer. What's your opinion?
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #24

    May 11, 2009, 05:29 PM

    Did you cut the wires with the ac breaker on? If so you will probably need a new transformer
    car9172's Avatar
    car9172 Posts: 14, Reputation: 1
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    #25

    May 11, 2009, 05:39 PM

    No , this started with a heavy thunderstorm. I heard a pop and went to the thermostat, it smelled burned and the AC hasn't worked since.
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #26

    May 11, 2009, 05:40 PM

    Ah OK. Yes it could have burnt the transformer when it burnt the t-stat
    car9172's Avatar
    car9172 Posts: 14, Reputation: 1
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    #27

    May 11, 2009, 05:42 PM

    I'm going to price a new transformer. Thanks for all your help.
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #28

    May 11, 2009, 05:43 PM

    Hope this is your problem, please let us know how it turns out.
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