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    tito2100's Avatar
    tito2100 Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Oct 24, 2006, 04:26 PM
    What could be the problem?
    I have a trane a/c unit outside. I had switched the thermostat from cooling to heat. After awhile it started blowing out warm air. I just went to the unit and saw frost on the outside coils and the motor? What can I do to fix the problem so that we can have hot air blowing into the house?
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
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    #2

    Oct 24, 2006, 09:29 PM
    Quote Originally Posted by tito2100
    I have a trane a/c unit outside. I had switched the thermostat from cooling to heat. After awhile it started blowing out warm air. I just went to the unit and saw frost on the outside coils and the motor? What can I do to fix the problem so that we can have hot air blowing into the house?
    Sounds like you have a heat pump and it is working like it should.
    tito2100's Avatar
    tito2100 Posts: 3, Reputation: 1
    New Member
    		  
    #3

    Oct 24, 2006, 09:38 PM
    Quote Originally Posted by NorthernHeat
    Sounds like you have a heat pump and it is working like it should.
    Yes I have a heat pump, but what should I do fix the problem. It's blowing out warm to cool air but it's not heating the house.
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
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    #4

    Oct 25, 2006, 02:20 PM
    What is the temperature rise (supply air temp' minus the return air temp) and the outdoor temperature. Should be about 18 degree rise at 40-45 degree outdoor temp
    SuperTyphoon's Avatar
    SuperTyphoon Posts: 85, Reputation: 5
    Junior Member
    		  
    #5

    Oct 26, 2006, 01:53 PM
    The air coming out of the heater should be somewhere around 100 degrees to heat the house.
    rickdb1's Avatar
    rickdb1 Posts: 185, Reputation: 15
    Junior Member
    		  
    #6

    Oct 26, 2006, 03:10 PM
    Have freon level checked. Compressor should not be frosting...
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
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    #7

    Oct 26, 2006, 05:28 PM
    As Northern said, get a temperature reading at both a return and supply outlet and post it for him.
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