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    dodahw's Avatar
    dodahw Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Feb 20, 2011, 03:52 PM
    Why does my evron furnace blow cold air
    My furnace flashes four times only cold air coming out
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #2

    Feb 20, 2011, 05:36 PM

    Sounds like an open high limit or flame rollout switch.
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
    Ultra Member
    		  
    #3

    Feb 20, 2011, 06:04 PM
    The code for the flashing light on the control board should be on the front or back of the furnace blower door.
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