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  1. Z

    Vaillant 1990s models

    Does anyone know if there might have been a major change in the Vaillant product line in the 90s? So, I looked up the right replacement time switch for the Turbomax 242; I asked here for advice; this morning I shut it down, opened it up, and found that - there is no clip holding the timer...
  2. Z

    Restart Vaillant Turbomax 242 after fitting time switch

    OK, so the installation instructions for the 110 timeswitch are clear enough. Once done, "recommission the boiler according to the commissioning instructions". We don't have the original commissioning docs, but I've just found a manual for a current Tmax on the Web and the commissioning...
  3. Z

    Replacing a timer, Vaillant Turbomax VUW 242 E/282 E

    Got a boiler that's either one of these. Belongs to the Shah of Landlordistan. Fires up OK, HW OK, but CH not working intermittently. This is clearly because the ancient mechanical (electromechanical? we hope) timer doesn't work - it's not ticking. Quick google shows various things under a...
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