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Pennco steam boiler overfills then shuts off

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Kunkun_20
Kunkun_20 Member Posts: 1
edited November 2021 in Gas Heating
hello need help , I have a pennco steam boiler , it overfills to the point some water comes out of the radiator. Also at the same time it keeps turning off . Any idea what might be causing this?

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  • Big Ed_4
    Big Ed_4 Member Posts: 2,785
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    Bypass though the boiler feed valves .. Manual or auto . Anything else connected to boiler like for hot water ?

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  • Jamie Hall
    Jamie Hall Member Posts: 23,337
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    It will turn off because the water rising in the system increases the pressure, which turn the pressuretrol off. Good thing, too.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,549
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    If you have a tankless water heater coil in the boiler it may have sprung a leak or the manual feed valve is leaking by or if you have an automatic water feeder that could be leaking by

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