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Combustion vibration

I have weilmclain 97+ 110 that is 6yrs old that is sparaticly making a vibration noise,lasts a couple minutes, don't get any faults or shuts boiler down, heat exchanger cleaned last March, still getting noise


  • HomerJSmith
    HomerJSmith Member Posts: 2,390
    You need to provide more information. Possibly, posting the noise.
  • Big Ed_4
    Big Ed_4 Member Posts: 2,690
    Is the noise coming from the blower or combustion ?
    I have enough experience to know , that I dont know it all
  • bburd
    bburd Member Posts: 872
    Oil or gas fuel? What type of burner? Pictures?

  • MaxMercy
    MaxMercy Member Posts: 497
    That's often like trying to describe a squeak in your car.

    FWIW, I've seen circulators make noise that travels through the whole system making it hard to find. A small section of rubber hose used like a crude stethescope can often help find noises. While it's acting up, put the hose on the circulator(s), burner motor,etc.
  • SuperTech
    SuperTech Member Posts: 2,120
    This is a fire tube condensing boiler. Typically the noise is from the combustion not being set correctly with a digital combustion analyzer or in some cases the gas line being undersized. Nothing we can do to help you with a combustion issue but if you post pictures of the boiler and piping we can see if the gas line is a possible problem. 
  • HomerJSmith
    HomerJSmith Member Posts: 2,390
    Nat gas or LP? A mechanic's stethoscope that you can get at an auto parts store would help pinpoint the noise. Any valves not fully open?