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3 zone FHW heat. Top floor zone always seems warm

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kgssully
kgssully Member Posts: 5
in Gas Heating
Hello, I have a 3 floor colonial. Basement, 1st, top floors. Each on its own zone. For some reason when the other zones are running the top floor baseboards always seem to be warm as if the zone is on(but it's not). The zone pump is NOT running. The pumps are Taco IFC's. Could the check valve be stuck open and allowing flow no matter which zone is selected? The top floor zone does work normally when selected. Any ideas? Thanks in advance@

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  • Ironman
    Ironman Member Posts: 7,376
    edited March 2012
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    More Than Likely...

    That's your problem. Look for some debris in the check of the offending zone.



    If that doesn't correct it, post some pics of the near boiler piping, circs. and controls.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • kgssully
    kgssully Member Posts: 5
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    That was it...

    Found a tiny little piece of something sticking in it, causing it to stay open a crack. Nice easy fix. Thanks for the help!!!
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