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    Vaillant VCW 242 no DHW or CH, diverter help

    I have a Vaillant VCW 242 running on mains gas; I have had a bit of an ongoing problem with it. The problem is that on request for CH the diverter valve does not move and therefore I have no CH, I have fitted a new servo valve, the DHW did work. Yesterday I fitted a new diverter valve and now...
  2. G

    Vaillant Boiler VCW GB 242EH

    I have a problem with my boiler, it will give hot water on demand but will not fire up for central heating. There is a signal coming from the room stat as the pump runs and the fan comes on. Someone told me it could be the thermistor but i am unable to locate it. Does anyone know where they are...
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