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837e

  1. C

    Vaillant Boiler Problem...

    I've got a Vaillant Turbomax Plus 837e. Lately it's had a few instances where it just doesn't deliver hot water. Possibly happens once a week, I press the 'reset' button, the boiler restarts and all is well. However, this morning it's worse. A reset doesn't help. If I turn the mains power off...
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