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    Wiring Diagram for a BAXI WM 511 RS boiler needed

    BAXI WM 511 RS wiring diagram? I have a problem with my BAXI boiler. When the water is on, heating off, the water and heating come on, and when the heating is on, water off, the water and heating come on. Also, strange bubbling noises come from the header tank. This is worrying so i have...
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