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    barryk3's Avatar
    barryk3 Posts: 1, Reputation: 1
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    #1

    Sep 11, 2009, 08:06 AM
    Coleman Presidential Gas Furnace
    Our mobile home Coleman Gas Furnace will let us light the pilot light, but when we click the thermostat up, no flame will ignite. Is it possibly a "flame sensor" not recognizing? Can we troubleshoot/fix ourselves?
    Model #7680 Series 856
    Thank you!
    markknapp61's Avatar
    markknapp61 Posts: 16, Reputation: 1
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    #2

    Sep 17, 2009, 03:03 PM

    Hi,
    This is not so much as an answer as to a Help request also, I am having the same issue with my coleman, already replaced the flame sensor to no avail. The burner starts up and shuts right back down within a few seconds. It was suggested there might be a blockage in the exhaust or roof vent causing a form of back pressure. If any one has any ideas as to what this may be please help.
    Thank You
    mendozah's Avatar
    mendozah Posts: 1, Reputation: 1
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    #3

    Feb 4, 2011, 12:51 PM
    I just had the same problem, and found the answer. It was the reset button on the side of the blower. I pushed it and the flame ignited, and a minute later, the blower came on. Hope this helps.
    joshuabrown's Avatar
    joshuabrown Posts: 1, Reputation: 1
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    #4

    Oct 14, 2012, 05:06 PM
    I have a Coleman Presidential II the pilot will ignite but the furnace will not come on. I replaced all thermocouplers and fan switches and blower and still nothing whaat should I do?
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