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new problem

john pjohn p Member Posts: 264
Ken, strange that it was running fine up till the day it wouldn't fire. Replaced the igniter (boiler only 2yrs old!)next day so I dont see what could cause any changes to air or fuel.


  • john pjohn p Member Posts: 264
    new problem

    Have a 2 yr. old Utica UB-90 200 that developed a crack in the igniter. Replaced it and now just as it ignites on start up there's a slight rumble that lasts a very short time but can be felt on the first floor when the boiler is in the basement. I have no idea what may be causing this.
  • Ken FieldKen Field Member Posts: 127
    Easy answer is replace the boiler

    but I'm not Charlie from wmass so I'll give you a decent answer. If you replaced the ignitor, the electrodes should still be adjusted where they were before, but that could cause it. A burner setup with instruments would be in order also since improper fuel pressure and air adjustment can cause your problem also. Efficiency will suffer if the burner is not adjusted properly too.
  • bigughbigugh Member Posts: 406

    perhaps the rumble caused the ignitor failure.
    Have that burner proffesionally set up!
  • stevesteve Member Posts: 33

    Rumbling can be the result of insufficient gas supply. Check the firing rate if able to clock meter on natural gas. If over-firing, you may lose ignitors. If you can't clock the meter, Lp C02 values would be about 10%CO2. Natural gas CO2 is 8.5%
  • stevesteve Member Posts: 33

    Might be a good idea to check the condition of the burner. Is the condensate drain built to manufacturers specs. It should be located on the boiler tee at side of boiler. Coming up outof the trap should be 3.5" rise and trap should contain water.
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