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  1. #1

    Igniter sparks, gas flows, but does not light.

    Hello,

    Newb here looking for clarification. Have an old Lennox G12 furnace with an intermittent pilot and Johnson G60 controller. The igniter causes spark, but the flame does not always light. It only lights occasionally and then more often when warm (after first running in the morning). The furnace tech said he suspected the controller, but couldn't explain why it didn't light even when it was sparking.

    The electrode gap has been checked, the flame shroud cleaned and the pilot orifice is clear. Anything else to check - or is it the ignition controller it?

    Thanks!

  2. #2
    Join Date
    Aug 2003
    Location
    Lincoln, Nebraska
    Posts
    1,051
    Can't really answer your question unless I am there checking the system myself. I would let the tech do his job and if the part dosn't work then they should take it back and go a different direction.

    Can't go much further than that on this forum.
    Its a good Life!

  3. #3
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,743
    where is the spark sparking when it does not light......

  4. #4
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,108
    Sorry, this is not a DIY site.

    Apparently, you called the wrong company, or they sent out the wrong tech.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  5. #5
    Join Date
    Jun 2004
    Location
    Howell, Michigan
    Posts
    16,176
    Sorry, this is not a DIY site, you need to call a service company to resolve your issues.

    Or, better yet, send the guy that's working on your furnace here and we will help make him a better technician!
    Last edited by HeyBob; 10-24-2008 at 05:23 AM.

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