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Turbomax Plus 828e Hot Water issues

Discussion in 'Plumbing and Central Heating' started by Dynmawr1, 23 Jan 2018.

  1. Dynmawr1

    Dynmawr1

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    Dear whoever can help....

    I installed a full (18 feed, 4 story) radiator system into my own house 14 years ago. It’s a 1860 building ... I used the Vaillant turbomax 828e...Over the years I have replaced the pressure switch once, the fan assembly once and the PCB once due to a intruding slug. It has had the occasional diverter valve issue and I am on my second HW heat exchanger.....

    I have read advice on the installation of a system filter and have taken it on board.... And I am now wondering if the lack of one could be helping to cause my latest problem....

    I recently installed a new diverter valve..... Now, as soon as I turn the hot water switch from Off to On (the Off/On/Timer switch) the boiler fires up immediately (code 5.24) with heat to the rads but with no heat to the hot water tap. Opening and closing the tap has no effect...... I have replaced the flow sensor impeller and Hall sensor.

    I am totally Flumackst!!....

    Any advise would be greatly appreciated.

    Kind Regards, Dynmawr1......
     
  2. Gasguru

    Gasguru

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    What hot water switch?
    Have you checked that the diverter motor head actuating pin is connected to the diverter body pin?
     
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  4. Dynmawr1

    Dynmawr1

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    Hiya..... The off/on/timer hotwater pinch switch..... There is a slightly larger but identical one just below it for the radiators..... And, No I have not.... But will asap..... Hopefully speak again.... Thanx ever so!
     
  5. Dynmawr1

    Dynmawr1

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    I can now confirm that the pin is connected to the motor and that the black spherical valve head is in the "heating" position... The heating is running perfectly... Kind Regards....
     
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  7. Dynmawr1

    Dynmawr1

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    BUT..... I am still suffering the original hot water issue...... Anybody ?
     
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