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Worcester Greenstar Heatslave 25/32 being weird.

Discussion in 'Plumbing and Central Heating' started by johnscot, 9 Oct 2019.

  1. johnscot

    johnscot

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    Hi,

    Its that time of year. We turned on the radiators, checked the system pressure and bled them and all was fine. Then the pump was making a strange surging that caused the diverter to rattle. Upshot was the pump needed replacing and somewhere in there the diverter screws for the motor came loose and was all stripped. So replaced the pump and the diverter and all was not ok.
    The DHW keeps running then going cold and eventually comes back on and off again. The diverter sometimes moves by itself but most often not. I am obviously not a heat engineer, but I am fairly handy sorting things out. Am I missing something obvious. Any suggestions welcome, oh I know I will regret saying it.

    Thanks
    John
     
  2. oilboffin

    oilboffin

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    An engineer is required I'm afraid looks like could be a major bust can't say I've had one like that it
    looks like something major has happened.It would be interesting to find out what has actually
    gone wrong.Bob
     
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  4. oilhead

    oilhead

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    Bleed the heatstore and check the sensors have not been misplaced in it.
     
  5. snb

    snb

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    yep i would go with heat store has air in the top so the sensors keep the valve on hot water mode
     
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