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Lochinvar Knight KBN080 gurgling noise

klink
klink Member Posts: 1
in Radiant Heating
I have a Lochinvar Knight KBN080 which was installed last fall. It works fine but makes a ridiculously loud gurgling noise, especially when it first starts running. It has a supplemental pump. I feel like I'm living in a houseboat. Any ideas?

Comments

  • Gordy
    Gordy Member Posts: 9,546
    Sounds like

    Air in the system.



    Gordy
  • Mark Eatherton
    Mark Eatherton Member Posts: 5,858
    Is the cap on the automatic air vent loose...

    under the cover of the boiler? If not, loosen it.



    ME

    There was an error rendering this rich post.

This discussion has been closed.

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