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  1. #1
    Join Date
    Apr 2005
    Location
    somewhere out there in hvac land far far away
    Posts
    196
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    KBN151 flue sensor fault

    Anybody have any issues with flue sensors part TST30011 on Lochinvar Knight Boilers. I have installed 2 boilers. One going for a year no problems. One is a month old and needs a flue sensor and maybe a board. Good thing customer has a wood stove since both supply houses that sell the Knight dont have weekend hours.

  2. #2
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    5,013
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    Are these flue sensors a temperature switch? or a thermistor?

  3. #3
    Join Date
    Apr 2005
    Location
    somewhere out there in hvac land far far away
    Posts
    196
    Post Likes
    a thermistor, , lochinvar called me back on a sunday which is good, they said to turn the sensor and for some reason that did it , reset boiler running fine, going to pick up a couple tommrow.

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