cold water tap starts boiler

  1. Keef1234

    Regular To Combi Boiler Cold Tap Woes...

    Hi everyone, I'm a new member and hope someone can offer advice re a new Combi install a few months ago... The issue I have is that the new WB4000 starts up when any cold taps are turned off (or the cistern is flushed). More info: 1) This combi boiler has replaced an ancient Apollo (regular...
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