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  1. #1
    Join Date
    Feb 2006
    Location
    michigan
    Posts
    177

    Comfortmaker wiring diagram?

    I am working on a comfortmaker m/n gnj075n12a1 and I went to order a radiant sense control from the local wholesale house, and they keep crossing it with a new control board. This control is mounted in the burner compartment next to the ignitor. It looks like a single pole double throw heat switch. Does anyone have a schematic or any advice of why they keep giving me a p/n for a new board. Thanks

  2. #2
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,089
    That's probably the same technology Trane tried and abandoned. You'll just have to get the kit to convert it to modern flame rectification technology.

  3. #3
    Join Date
    Feb 2006
    Location
    michigan
    Posts
    177
    Thats what the supplier was trying to give me. But i wanted to make sure because i was asking for this part that was essentially a spdt heat sensor/element and they wanted to sell a new control board. They are saying it is aconversion kit but noone knows for what. It wouldn't be the first time I walked out of asupplier with the wrong part.

  4. #4
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,741
    probably won't be the last.........

  5. #5
    Join Date
    Oct 2004
    Location
    The "Burgh"
    Posts
    1,255
    I can give you all the reasons, but not in this forum.

    Mods, can you move this to Pro, so I can respond ?

  6. #6
    Join Date
    Jul 2008
    Location
    Jefferson, GA
    Posts
    46
    From what I understand, that was an abandoned technology - nothing but problems. The only fix is the conversion kit to HSI. Not a bad job, but the instructions are missing one step - off the top of my head, I think it's the neg. press. switch ends up not being connected back to the board. You'll see it when you finish - we change out 4 - 5 of those a year.

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