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  1. #1
    Join Date
    Nov 2003
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    Just put in a new Dunkirk boiler last fall, everything ran good all winter long. Around April of this year, I began to hear a vibration noise coming from the cir. pump. The noise kept getting louder and louder, now I can hear it all through my baseboard pipes when the boiler turns on. This is the first boiler I had with a Taco pump on it, always had Grundfos. Don't know much about these Tacos, do they have some kind of bearing in them that could be going bad. I can't seem to find out why the pump is making a vibration noise like that. Can anyone help me out?

  2. #2
    Join Date
    Mar 2004
    Grottoes VA
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    You may have a broken impeller on the pump which would cause a vibration. The cartridge in the taco is replaceable.

    It should be under warranty call the installer out to fix your unit.
    Karst means cave. So, I search for caves.

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