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    stormn49's Avatar
    stormn49 Posts: 6, Reputation: 1
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    #1

    Aug 5, 2010, 03:08 PM
    How to tell if ac thermostat is bad,
    I have a Nordyne 12 seer heat pump, I heard a pop today, and the ac cut off and the thermostat went dark
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
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    #2

    Aug 5, 2010, 03:09 PM

    Jumper red to green, did anything happen?
    stormn49's Avatar
    stormn49 Posts: 6, Reputation: 1
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    #3

    Aug 5, 2010, 03:34 PM
    No
    stormn49's Avatar
    stormn49 Posts: 6, Reputation: 1
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    #4

    Aug 5, 2010, 03:35 PM

    Did you mean in the thermostat box
    stormn49's Avatar
    stormn49 Posts: 6, Reputation: 1
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    #5

    Aug 5, 2010, 03:44 PM

    Did you mean in the thermostat box
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
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    #6

    Aug 5, 2010, 03:47 PM

    Yes at the thermostat
    stormn49's Avatar
    stormn49 Posts: 6, Reputation: 1
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    #7

    Aug 5, 2010, 04:01 PM

    Nothing happened, any other suggestions
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #8

    Aug 5, 2010, 07:29 PM

    You might have/probably blown the transformer

    They don`t go bad very often, something maybe a short caused it
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