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Worchester Bosch boiler automatically switches on to heat hot water

Discussion in 'Plumbing and Central Heating' started by 802595353, 25 Apr 2021.

  1. 802595353

    802595353

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    Hi, I have a Worchester Bosch 8000 Life, 35KW and I have noticed every evening at 18.10, the boiler automatically fires to heat the hot water. No hot water taps in the house have been turned on.
    Is there a timer in the boiler which programs this feature to happen
     
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  3. oldbutnotdead

    oldbutnotdead

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    Is this a combi boiler? If yes there is a setting that keeps water in the dhw hex warm- makes response to tap opening a bit quicker. Have a read of the manual for your model.
    Or. Does the boiler fire up fully or just make some whirring and chuckling noises? Again I think the thing is set to spin the pump and move a few other moving parts once every 24 hours (to prevent those parts from getting stiff thru underuse in the summer and failing in October).
     
  4. 802595353

    802595353

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    Thanks for your reply, it is a Combi boiler and I checked at 18.10 and the boiler switched on. I could hear water going in the boiler and the pump running but the boiler didn't fire up.
     
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