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Cantankerous H.B.Smith Propane Boiler

Nevin H.
Nevin H. Member Posts: 6
I have a small H.B.Smith Propane gas boiler that is hard to start at the beginning of the season. It automatically tries to start only 3 times. If that fails, the circulator keeps circulating cold water.

I noticed that the flame was yellow, but an annual wire-brushing removes the surface rust from the 3 flame tubes and returns the flame to blue.

If I maually restart the ignition cycle about a dozen times, the blue flame keeps burning. This tells me the repeated starting is warming up the flame Sensor to a point where it keeps the gas turned on.

Is there an electrical or physical adjustment on the Sensor,
or has it lost its sensitivity and needs to be replaced?
Or am I barking up the wrong tree?



  • ed wallace
    ed wallace Member Posts: 1,613
    propane boiler

    its not a good idea to play around with propane please call a service co to look at your boiler before you cause a major problem

    To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"
  • Nevin H.
    Nevin H. Member Posts: 6

    I built my home in 1960 with hammer and saw.
    I installed this boiler in my home.
    I've been a repairman all my life.
    I'll keep it up until I put the house into orbit;

    worry not!
  • Tony_8
    Tony_8 Member Posts: 608
    what model ?

    and where are you ?
  • Into orbit it may go


    As you keep recycling that burner gas is building up. Propane is heavier than air and you may not sense it accumulating until it blows up in your face.

    Believe an old gas man with over 40 years in that business get a professional service tech to look at your burner.
  • Nevin H.
    Nevin H. Member Posts: 6

    Why are you replying, if you don't know the answer?
  • Nevin H.
    Nevin H. Member Posts: 6
    Happy Holloween

    I'm in central Pennsylvania

    Model G100-W-3-HSID

    Happy Holloween,
    Nevin H.



    Best stay indoors tonight,
    for it is dark and it is cold.
    Leave the wandering tonight,
    to fearless and the bold.

    Weird sounds and shadows,
    fill the night, and seem to follow you.
    Be careful where you go tonight,
    be careful what you do.

    The slinking and the slithering,
    are dressed in orange and black.
    Look all around, behind the trees,
    most surely, watch your back.

    'Tis little bags of candy,
    that they search for, in the night.
    With flashlights, shining eerily,
    to surely cause you fright.

    So guard your candy cupboard,
    and be careful who you greet.
    Or you may hear, the frightful words,
    "Hallow there, Trick or Treat"

    Nevin Hawlman
  • Nevin H It is not that I do not

    know the answer it is that you should not be messing with something you know nothing about.

    You will need to hook up a microamp meter and take some readings. If you give the controls involved with your boiler I will give you some advice. You can believe this if any one knows I know. You want help I am willing to help to a point but only looking out for your safety.

    There can also be combustion problems casuing your problem. Have you done a combustion analysis and carbon mopnoxide test?

    What are your voltage readings to the controls? Do you have a good burner ground? The list goes on of things you need to check and know how to do.
  • Don't let 'em goad you, Timmie

    We know you help all equally, and you want to harm no person in that house. Your advice is the best.

    You need not feel obliged to prove yourself. The guy scared all of us. Being bullheaded doesn't make him right.

    Happy Halloween.

  • Bob Flanagan_3
    Bob Flanagan_3 Member Posts: 67
    Smith Boiler


    Although I no longer work for Smith Cast Iron Boilers, I strongly, and I mean strongly, reccomend that you follow the directions of the gentlemen that have tried to help you on this site. You need to get a technician that is trained and more importantly equipped to diagnose your problem before you hurt yourself or your family. Please contact the tech. service department at Smith, 413-562-9631. They will be happy to get the area rep. out to your home to help out if neccessary.

    Good luck and please as Timmy indicated, call for Qualified help.

    Best Regards,
    Bob Flanagan
    Regional Sales Manager
    Slant/Fin Corp.
    Bob Flanagan

    Vice President

    Slant/Fin Corp.
This discussion has been closed.