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    coffee man's Avatar
    coffee man Posts: 1, Reputation: 1
    New Member

    Dec 13, 2016, 08:55 AM
    Flame blowback in burner
    I have an older Wait Circulator using propane in the garage.
    It's a model NW50 which I have properly maintained over the years.
    Just recently I removed the burner to clean it because it was burning yellow.
    A hacksaw blade fits just perfect in the slots to clean them and just bow it out.
    Now I have a nice blue flame but after a minute there is blowback and the gas ignites below in the burner chamber.
    What should I do?

    ma0641's Avatar
    ma0641 Posts: 15,681, Reputation: 1012
    Uber Member

    Dec 13, 2016, 01:03 PM
    Sounds like the burners aren't properly installed allowing gas to bypass the burner. If it worked properly before cleaning something was not done right on the reinstall. Make sure the burner isn't cracked.

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