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  1. J

    Vaillant 824E Diverter Valve

    I have stripped down the motor and valve. The valve pin moves pretty easily. I have used some silicone grease on it, and it seems to be fine. I still don't understand why it drives fully home on a reset, but not after a CH demand. I'm sure there must be a timing to be set somewhere, as it...
  2. J

    Vaillant 824E Diverter Valve

    I have a 5 year old Turbomax Plus 824E (VUW 242). The diverter valve is working, but doesn't fully travel home for DHW. I don't know about the CH loop. When I press the reset button, it works properly, and I get water at the right temperature, but if there has been a heating cycle in...
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