hot water circulators

Home Forums Public Forums General Plumbing hot water circulators

Viewing 2 reply threads
  • Author
    Posts
    • #273898
      MasterPlumbers
      Keymaster

      I have a three zoned forced hot water baseboard heating system. The basement and 1st floor zones are woking fine but the top floor does not produce heat (this season only). The thermostat has been tested and works fine. When I call for heat, I can hear the pump humming, but i’m not sure if it is pushing water through. Could it be an air block? Any help out there?
      Thanks in advance. Jack

    • #288780

      It can be an air block. Check the pressure on the boiler gauge. The pressure should read at least 1/2 the number of pounds on the gauge that the top radiation is in feet of height from the boiler. The top floor is also a likely place for air to cause a block, as bubbles rise to the top of water.

    • #288781

      Thanks Harold, I fixed the problem before I read your message. I changed the circulator..not really a big deal. Thanks anyway! Jack

Viewing 2 reply threads
  • You must be logged in to reply to this topic.

Pin It on Pinterest

Share This