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BryanGalde
BryanGalde Posts: 1
in Radiant Heating

Got Error code B30,, Circulation pump was warm and making noise. Pulled pump from housing and there in no water in housing ? Something plugged? or where to look next ?

Comments

  • hot_rod
    hot_rod Posts: 28,704

    What is the pressure reading on the boiler? Assuming you have a working, accurate gauge somewhere. A spinning circ with no water is a concern.

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    mattmia2
  • mattmia2
    mattmia2 Posts: 18,399

    Leak somewhere and if something is supposed to provide makeup water automatically it isn't working.

    Some pictures from a distance back of the boiler and the piping would help.

  • 109A_5
    109A_5 Posts: 4,759

    Sounds like the system has a leak and someone shut off the cold water fill. So no or not enough water to move the heat properly, causing the error.

    image.png image.png
    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System

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