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

    Oct 26, 2013, 08:34 AM
    Furnace model #7680C856
    My furnace cuts off and the pilot light goes out when I light the burner and turn the heat on. I replaced the thermo coupler last year but I don't remember which one I bought
    Grady White's Avatar
    Grady White Posts: 1,417, Reputation: 59
    Ultra Member
    		  
    #2

    Oct 27, 2013, 09:27 AM
    Pilot burner is probably dirty. Remove & clean. Thermocouples are pretty much universal. All I carry on the truck is 30" which will fit in 99%+ of the heaters out there. Just coil any excess. If all you can find is 24", it will likely work.
    slthacker71's Avatar
    slthacker71 Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Nov 9, 2013, 08:48 AM
    How do I replace the thermocoupler in a coleman furnace model #7680c586
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