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Freezing in Montana - Slant Fin Concept 21 CB1-135 Not working

Hi, Anyone have experience with a Slant Fin Concept 21 - CB 135 ?

My boiler is about 19 yrs old, was having a "no ignition" blink code, had a fix it guy come out, he replaced the ignitor and replaced the gas valve still getting the "no ignition" code and cycles on for 1 min then off. He got a magnahelic calibration gauge and found out it should go to zero when gas valve opens but its not. I have a 3300 sqft home in Montana no heat from radiant floor for 2 wks, HVAC guy has been trying to fix for 2 wks but has never worked on this kind of boiler and is confused why its not working. Tech support from Slant Fin has been no help :(
Anyone have any suggestions I can relay back to fix it guy :D


  • Paul48
    Paul48 Member Posts: 4,469
    Is he an HVAC guy, or a fix-it guy? It sounds like the latter.
  • Jamie Hall
    Jamie Hall Member Posts: 22,917
    See Keith's post in the other (identical!) thread on the Main Wall
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England