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    cherylk66's Avatar
    cherylk66 Posts: 1, Reputation: 1
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    #1

    Dec 27, 2009, 11:05 AM
    We have a heil super high efficiency furnace Model: NULK075DG05 / 867.779424
    We have a heil furnace Model: NULK075DG05 / 867.779424 and the red light is flashing on the control board. We have a manual but cannot find anything concerning the red light flashing and what it could mean. The furnace will start all the steps of igniting without actually igniting. We have checked all the hoses and vent traps to make sure that there are no restrictions. We are assuming that it has something to do with the igniter itself but you know what happens when you assume. We are sure that the flashing red light is trying to tell us something but cannot find what it would be. Does anyone have any idea on the flashing red light or what our problem could be? Thanks so much!
    joeconnors's Avatar
    joeconnors Posts: 1, Reputation: 1
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    #2

    Mar 11, 2012, 09:40 AM
    I know this is an old post,but I can't answer it anyway.I saw this post and was hoping you might still have the owners manual to this furnace,particularly the installation manual.If so I would be willing to pay you for a photo copy of them as I have this same furnace and need the manuals for all the info. To hook it up.clearance requirements and such.Thank you very much for your much needed response! Sincerely, Joe Connors
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