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Thread: backup wood boiler wont shut off

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  1. #1
    DIY Junior Member
    Join Date
    Dec 2009
    Location
    galesburg,il
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    1

    Default backup wood boiler wont shut off

    My wood boiler is a backup to my gas boiler the gas boiler is working fine but when the wood boiler is up the temp the pump will not shut off was working fine just all the sudden quite shutting off any help is appreciated thanks

  2. #2
    Plumbing Contractor for 49 years johnjh2o1's Avatar
    Join Date
    Aug 2009
    Location
    South*East
    Posts
    1,121

    Default

    Sounds like your over heating the wood boiler. The circulator keeps running to stop the boiler from over heating. The boiler temperature should not be any hotter then 180. Most wood boilers are wired so the circulator will run when the temperature exceeds 180 if the thermostat is calling or not.

    John
    Last edited by johnjh2o1; 12-14-2009 at 04:49 AM.

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