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    katocol's Avatar
    katocol Posts: 2, Reputation: 1
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    #1

    Nov 14, 2010, 02:04 PM
    Heil Furnace - Ignitor will not lite
    Heil Furnace - exhaust fan comes on but the ignitor does not lite. It is because the pressure switch is not to pressure. I remove the vacuum line to the burner chamber and then the igintor comes on. If I place the vacuum line back on the burner chamber the ignitor goes out and the furnace does not lite. If I leave the vacuum line off the furnace works fine. I have checked all the vacuum lines and they are clear. What could be the problem?
    lisbonslady's Avatar
    lisbonslady Posts: 3, Reputation: 1
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    #2

    Nov 14, 2010, 03:44 PM
    The air flow switch could be the issue.
    katocol's Avatar
    katocol Posts: 2, Reputation: 1
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    #3

    Nov 14, 2010, 03:52 PM
    Is the air flow switch the pressure switch? I forgot to mention that I bought a new pressure switch and installed it and it did not fix the problem. About an hour ago I pulled the vacuum hose off the combustion fan and sucked on the hose and the pressure switch pulled in and the ignitor energized. But once I hooked it all back up I still have the same problem.
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