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Dunkirk boilers

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meestorapple
meestorapple Member Posts: 1
in THE MAIN WALL
I have a Dunkirk D247 hot water boiler. It started firing up for a couple minutes then would shut off for 45 seconds and then fire up again. I turned off the power and when I turned it back on minutes later the electronic spark kept sparking , the pilot was lit but low flame and the boiler would not fire up. Any suggestions would be appreciated

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  • JUGHNE
    JUGHNE Member Posts: 11,513
    First guess would be to clean pilot burner and also clean flame sensor. BTW, don't lose the orifice out of the pilot burner.

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