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    Duane0941's Avatar
    Duane0941 Posts: 5, Reputation: 1
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    #1

    Apr 25, 2009, 04:12 AM
    Heat and A/C run at the same time.
    Bought a new honeywell thermostat and changed it per the instructions all wires in the right spot, but the heat and A/C run at the same time. I have to change the batteries in the thermostat to eliminate that. Any help you can offer would be great!!
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #2

    Apr 25, 2009, 06:44 AM

    Do you have gas heat or a heat pump?
    Duane0941's Avatar
    Duane0941 Posts: 5, Reputation: 1
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    #3

    Apr 25, 2009, 11:03 AM
    I have gas heat.
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #4

    Apr 25, 2009, 11:20 AM

    Is there a jumper wire between rh and rc?
    Duane0941's Avatar
    Duane0941 Posts: 5, Reputation: 1
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    #5

    Apr 25, 2009, 12:24 PM

    Yes there is, but if I'm not mistaken it says to leave it in place if you don't have a heat pump. And if I'm not mistaken the old thermostat (that I broke,ooops) had the jumper in place. But I could be wrong because I don't have the directions in front of me. Regardless of how this works out thanks for the quick response, especially on a Saturday.
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #6

    Apr 25, 2009, 12:29 PM

    OK, let me see
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #7

    Apr 25, 2009, 12:31 PM
    I have changed t-stats before and the y wire was just a tad to long and ended up touching the w. check to make sure the wires are in no way touching at the stat. if they are not we can check some other stuff
    Duane0941's Avatar
    Duane0941 Posts: 5, Reputation: 1
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    #8

    Apr 25, 2009, 12:34 PM

    OK I'll double check my connections and my exposed wires for contact.
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #9

    Apr 25, 2009, 12:39 PM

    OK let me know what you find
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #10

    Apr 25, 2009, 08:54 PM
    Sounds like you have the thermostat set up for heat pump and not gas heat.
    Duane0941's Avatar
    Duane0941 Posts: 5, Reputation: 1
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    #11

    Apr 26, 2009, 02:49 AM

    Well, GOOD NEWS. The Honeywell ($64.00)thermostat was apparently bad or it was me (which is always a factor). I bought the cheapest digital I could A Hunter ($24.00) hooked it up per the instructions w/ the jumper in place and it worked right out of the hole. So I appreciate your support and quick response, and your are in my favorites and I will share with everybody. It's nice to see folks sharing their knowledge especially on the weekends, who would have thunk it. You all have a great day and may GOD bless you and yours.
    Duane.
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