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    happy29's Avatar
    happy29 Posts: 3, Reputation: 1
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    #1

    Jan 26, 2007, 09:34 PM
    Central heat freezing up
    My central heat runs for about 8 hours and thin freezes up with about 3 inches of ice around the whole thing
    letmetellu's Avatar
    letmetellu Posts: 3,151, Reputation: 317
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    #2

    Jan 26, 2007, 10:00 PM
    Sounds like to me that you have a heat pump and that it is not going in to the defrost mode. To get rid of the ice that is there urn the unit off or put it on emergency heat. You may need a Tech to check it out. Several things can cause this.
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
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    #3

    Jan 27, 2007, 10:19 AM
    Is it Ice or frost? Frost is normal, ice is not.
    happy29's Avatar
    happy29 Posts: 3, Reputation: 1
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    #4

    Jan 28, 2007, 10:06 PM
    Quote Originally Posted by NorthernHeat
    Is it Ice or frost? Frost is normal, ice is not.
    Mostly frost but it gets about 3 inches thick
    happy29's Avatar
    happy29 Posts: 3, Reputation: 1
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    #5

    Jan 28, 2007, 10:07 PM
    Quote Originally Posted by letmetellu
    Sounds like to me that you have a heat pump and that it is not going in to the defrost mode. To get rid of the ice that is there urn the unit off or put it on emergency heat. You may need a Tech to check it out. Several things can cause this.
    What is the emergency heat
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
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    #6

    Jan 29, 2007, 07:18 AM
    There should be a switch on the thermostat for emergency heat, it is a back up heat source for those very cold days when the heat pump can no longer keep up.
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