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  1. M

    vaillant expansion vessel charging valve

    Thank you Simon and Giblets, i'll leave it all alone
  2. M

    vaillant expansion vessel charging valve

    maybe i should leave all well alone then?
  3. M

    vaillant expansion vessel charging valve

    cold setting pressure is 1 bar
  4. M

    vaillant expansion vessel charging valve

    I have tried looking for the expansion vessel charging valve on my Vaillant turboMax 824 boiler but can't find it can anybody tell me what it looks like please? The boiler pressure rises by half a bar when the heating is on, so i suspect that the expansion vessel needs recharging. I have...
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