Burners Fail to Ignite
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  1. #1
    Join Date
    Dec 2005
    Posts
    1
    I have a Lennox Merrit Series model #G33-30B-F which is 4 years old. The burners will ignite and run for approx. 2-5 seconds and then shut off. The furnace will try to light 3 times and then kicks off into the the "Burners Failed to Ignite" mode. If I shut the furnace off at teh main switch and then turn it back on again it will run fine until the next cycle needs to start. Any ideas on what is causing this and how to fix it? The filter was just changed and the dust and dirt has been blown out of the furnaces. Thanks.

  2. #2
    Join Date
    Feb 2004
    Posts
    2,597
    my guess would be that there is a problem you are unfamiliar with, and anyone on a message board trying to diagnose the situation, has a good chance of being wrong.

    call the installing company if you're happy with them, if not call someone else.

    it's actually a great idea to have fuel burning appliances looked at annually, you never know. even if they are only 4 yrs. old.

    make sure to place some carbon monoxide detectors on all levels of your home, especially the sleeping areas, nothing worse than lying down to take a nap and it ends up being a dirt nap.

    call a pro and have it checked out, you'll be glad you did.


    good luck.

  3. #3
    Originally posted by yani4
    Any ideas on what is causing this and how to fix it?


    Welcome to HVAC TALK. However this site has rules against giving out technical advice to DIY'ers. I have attached a link below for your convenience.

    Here's something to think about though...

    When was the last time you had your unit cleaned and inspected?

    Now you have a problem with the unit. Fuel costs are skyrocketing.

    So why not call in a professional to repair the unit? While they are there they can clean and inspect your unit to insure a safe living environment for you and your loved ones. Not to mention, having an efficient running system could save you more than the cost of the service.

    What's your safety worth? I'm guessing more than the repair bill.

    Thanks for your understanding.

    (we can't help DIY, due to site rules )

  4. #4
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,675
    better call for service. that coil model you gave does not have any burners in it.

  5. #5
    Join Date
    Nov 2005
    Location
    BAKERSFIELD CA.
    Posts
    78
    CHECK THE FLUX INNER PHASE LIMIT THINGIE!!!!!!!!!!!!!! IF THAT DOESNT WORK CALL A PRO.

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