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Buderus GB142/45

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straightwire
straightwire Member Posts: 1
in Gas Heating

6A code. Cleaned, new gas valve. Tech who was here could not get to run long enough to analyze so put old valve with new selenoid on. Only fires/ runs if I choke blower intake air with tape. First time no heat is called for and then is called for doesn't fire unless I reset and choke. Any ideas???

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  • psb75
    psb75 Member Posts: 836
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    This boiler is very sensitive to air/fuel mixture. Maybe look at the venturi and see if it needs replacing. I did this in a 15-yr. old GB142/45 showing a 6A code. I also replace various gaskets that wore out. The plastic snorkel intake tube also broke when I dismantled it. So I got a new one of those. Problem was fixed.

  • Ironman
    Ironman Member Posts: 7,376
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    Why a new gas valve?

    Have you checked the trap and drain for blockage?

    How about the flame rod and igniter?

    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.

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