Brand New Boiler Circ. Pump w High Pitch Sound

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by molo, Nov 6, 2009.

  1. molo

    molo Member

    Messages:
    849
    Location:
    cold new york
    What does this mean that I am hearing a very high pitch sound from a brand new circ pump? It is a Bell and Gosset 3 stage pump and it does whir on all 3 stages.

    Thanks for any replies!
  2. nhmaster

    nhmaster Master Plumber

    Messages:
    3,189
    Location:
    S. Maine
    It's bad, return it/
  3. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,270
    Location:
    New England
    Did you run it dry at all? The bearings don't like to run dry...
  4. molo

    molo Member

    Messages:
    849
    Location:
    cold new york
    It was not run dry and has actually stopped. It lasted for about 4-5 hours after it's initial start-up. Bell and Gosset NFR-25 (or is it NRF, but you get the idea)

    Thanks for the replies!
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