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Had to bang of LWCO for Burner to start

My burner would not fire at all. It went straight to lockout. When I banged on the LWCO it fired right away. Has this happened to anyone before? Does it mean it might be faulty?


  • Jamie Hall
    Jamie Hall Member Posts: 23,297
    Type of LWCO?

    If it's a probe type, you may have a loose connection.  Or the probe could be grubby.  If it's a float type, how long has it been since it's been flushed out?  Or the float could be sticking?

    Or... it could just be faulty!
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • Sly
    Sly Member Posts: 29

    I have never flushed it out.  How do you do that?


  • Alan (California Radiant) Forbes

    What kind do you have?  If you don't know the model number, send us a picture.
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
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