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Thread: furnace help

  1. #1
    Join Date
    Jan 2010
    Posts
    2

    Question furnace help

    hello all im new here with a ploblem, i have a armstrong ulta 80sx gas furnace, iv had 2 different companies here trying tio fix this BIG BOX,,here is whats going on the inducer motor runs, the igniter glows brite orange, next thing is sometimes lites sometimes dont, maybe 1 try to lite maybe 2 times maybe 3 here is the thing all new parts new sensor new igniter new Smartvalve, gas presure has been checked, last tech says sorry i have been here 3 times i dont know what else to do you are on your own HELP!!! PLEASE
    Last edited by johnnyd; 01-23-2010 at 01:26 PM. Reason: mis spell

  2. #2
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    5,555

    Default Re: furnace help

    If the flame lights and then goes out immediately, there is generally 3 common causes.
    1- The flame sensor is dirty or defective.
    2-The flame is not going all the way across the burner because it is dirty.
    3- Your flue pipe is dumping into a large chimney and you are not getting the proper draft. You would need a flue liner installed the same size as the flue pipe going all the way up and out of the chimney.
    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

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