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  1. J

    Thanks Steve, are these parts readily available?/ My Gas man has seen the boiler but has no...

    Thanks Steve, are these parts readily available?/ My Gas man has seen the boiler but has no clue! John
    • john68
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  2. J

    VAILLANT C1

    My vaillant combi Type CI - GC 4704413 was working fine until a month ago. It now intermittently heats the water. What could be the part that may need replacing?? Jonh
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