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

    Feb 7, 2014, 01:31 AM
    Colman gas furnace model dgaa077bdta
    Furnace just quit, light say combustion air switch stuck closed, can't get it to turn back on -35 outside at 1:30 am please someone give me idea how to fix it
    drtom4444's Avatar
    drtom4444 Posts: 3,282, Reputation: 145
    Ultra Member
    		  
    #2

    Feb 8, 2014, 07:08 AM
    You have to use a meter to check out anything on this furnace, but if the switch is bad then replace it. Check your relays and safeties with a meter. It really pays to learn to use a meter instead of relying on changing parts, and it's easier and cheaper, too. Here are some manuals: https://dl.dropboxusercontent.com/u/...e%20Manual.pdf
    https://dl.dropboxusercontent.com/u/...Electronic.pdf
    https://dl.dropboxusercontent.com/u/...20Diagrams.zip
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