Heil Furnace Backfire.

Discussion in 'Introductions' started by mvannorman, Dec 4, 2007.

  1. Dec 4, 2007 #1

    mvannorman

    mvannorman

    mvannorman

    New Member

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    I Have A 15 Yr Old Heil Propane Furnace.it Frequently Backfires On
    One Or Two Burners When Startup And Will Have Flame Pulsing Inside Burners As Well As Flame Out Normal Area.i Have Replaced
    Cross Lighter Bar And Gas Valve.all Burners Are Clean.gas Psi Has
    Been Confirmed To 10.wc.furnace May Light 2-4 Times Without
    Backfire/inside Flame Than Backfire Next Couple Times.please Help,
    Furnace Pro Stumped. Thanks,mike
     
  2. Dec 5, 2007 #2

    inspectorD

    inspectorD

    inspectorD

    Housebroken Staff Member Admin Moderator

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    Maybe a new furnace pro for some different options??
    Sounds like there is something in the propane...is the drip leg full of water?

    I can't help to much...but propane is a serious problem if not fixed.
    Good luck.
     
  3. Dec 5, 2007 #3

    glennjanie

    glennjanie

    glennjanie

    Well-Known Member

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    Welcome Mike:
    On the face of the burners there is an air adjustment shutter with a screw to hold it on setting. You can loosen the screw and turn the shutter until the burner shows a nice blue flame with no smoke then retighten the screw. Another possibility is a dirty orifice in the center of the burner. Take the orifices out and clean all of them with the correct size wire cleaner or a drill bit of specific size. The LP gas place will have the wires or bits. The bits for this have a hex end on them and can be turned with your fingers.
    Please let us know how it turns out.
    Glenn
     

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