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Williamson boiler burner turns on & off

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nytech28
nytech28 Member Posts: 67
in Radiant Heating
i checked  Williamson hot water boiler, burner cycles on & off, to troubleshoot fast, I swapped control board & ignition assembly with similar model boiler, but same results , I unplugged gas valve seems to be getting 24 volt's, once gas vavle connected back burners fires up & off , can this be gas vavle issue ? 

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  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,523
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    Who knows? Could be anything including the gas valve. Throwing parts at it without troubleshooting what you have is just guessing

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