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    Vaillant VCW 242 Combi Boiler Issues

    Hi As this site has helped me keep my Vaillant VCW 242 Combi Boiler going for the last 20 plus years without an engineer callout, I thought I better share my latest fault and repair finding with anyone who still has one these comi's. So here's what happened. The boiler appeared to be...
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    Vaillant Combi Luke Warm Hot Water.

    Hello I have a Vaillant Comi Model VCW GB 242 EH for which I can no longer get the Hot water to increase to a reasonable temperature. The DHW temperature adjuster produces mildly warm water when turned fully on. The complete water section was replaced about 6 Months ago so I don't...
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