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    babies's Avatar
    babies Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Dec 10, 2009, 10:40 PM
    Why does my furnace blow cold air
    My furnace is going on for a few minutes and then shuts off. The pilot is lit and it is igniting but is only blowing cold air and only stays on for about 2 minutes then the blower shuts off but the flame is still burning
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Dec 11, 2009, 12:47 AM
    Your no name and no model number furnace might have a bad fan and limit control or burner problem.
    babies's Avatar
    babies Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Dec 11, 2009, 12:27 PM

    It is a coleman 7656 in a mobile home
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #4

    Dec 11, 2009, 12:32 PM
    Probably a bad or out of range fan control disc. Post at the link under Coleman your problem and they will have a solution. They also sell parts so it will save you some time and $$.

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