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sight glass full

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jim929
jim929 Member Posts: 1
edited March 2016 in THE MAIN WALL
hi my sight glass usually shows half full but now it completely full how do i fix this?

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  • Paul S_3
    Paul S_3 Member Posts: 1,291
    Could be clogged.......boiler could be overfilling....a little more details...pics of boiler and piping help
    ASM Mechanical Company
    Located in Staten Island NY
    Servicing all 5 boroughs of NYC.
    347-692-4777
    ASMMECHANICALCORP@GMAIL.COM
    ASMHVACNYC.COM
    https://heatinghelp.com/find-a-contractor/detail/asm-mechanical-company
  • BobC
    BobC Member Posts: 5,539
    Open up the boiler drain and see if you can remove water till it's at the right level. If water is coming out and the sight glass does not start to drop it could well be a clog in a sight glass cock.

    If you have an auto water fill on the boiler it may be leaking by or maybe the LWCO has failed and it's telling it to fill when it shouldn't.

    Pictures will help.

    Bob
    Smith G8-3 with EZ Gas @ 90,000 BTU, Single pipe steam
    Vaporstat with a 12oz cut-out and 4oz cut-in
    3PSI gauge

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