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    Balmoral 55F open vent boiler

    I have just replaced the PCB in a Balmoral 55F open vent boiler due to complaints of fumes - the actual smell was coming from the PCB which had obvious signs of scorching/arcing - it was actually smoking! The cause is usually water damage but that wasn't obvoiusly the case here. However, I...
  2. C

    Balmoral 55f - new PCB

    I have just replaced the PCB in a Balmoral 55F open vent boiler due to complaints of fumes - the actual smell was coming from the PCB which had obvious signs of scorching/arcing - it was actually smoking. The cause is usually water damage but that wasn't obvoiusly the case here. However, I...
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    vaillant combis - hw call boiler fires; ch call nothing.

    I am a boiler breakdown apprentice, more of an installer, and wonder if somebody could give advice on the "hw call boiler fires, ch call nothing" problem on Vaillant combis. I haven't been to see the boiler yet but assume the system pressure might be too low on the heating side. Any other...
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