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Vailant Turbomax 824E/828E

Discussion in 'Plumbing and Central Heating' started by kieranstoke, 9 Nov 2009.

  1. kieranstoke

    kieranstoke

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    Hello

    Iv recently moved into a property and Im having trouble with my boiler.

    My radiators are working fine, the problem is with the water...

    When i run any hot taps the water runs hot (although not really hot) for about 10 seconds and then cools for about ten seconds making a warmish bath or sink.

    A plumber nosed at it briefly whilst doing another job for me and suggested replacing the hot water thermoster probe, which i have done with no success. He also suggested that if it didnt solve the problem then maybe the boiler isnt strong enough to power the system i have.

    I don't want to replace my boiler because of the expense so was wondering if anybody had a possible solution???


    Thanks.
     
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  3. kevplumb

    kevplumb

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    :oops: wrong boiler :oops:
     
  4. kieranstoke

    kieranstoke

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    Wrong boiler?

    Explain???
     
  5. Agile

    Agile

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    It could be a sticking diverter valve or a blocked plate heat exchanger or a few other less likely faults.

    A 24 kW boiler will only give about 8 litres per minute of hot water so measure and see how much you are taking.

    Does it give the same effect with a slower flow in the basin?

    It could well be that you are taking more water than it can heat.

    But normally if thats the best description of the fault that can be given, then it will need an experienced boiler engineer to diagnose exactly what the problem is.

    Tony
     
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  7. kieranstoke

    kieranstoke

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    Thanks Agile...

    It doesnt matter which taps i use or how fast the water comes out of them, it still goes hot then cold so i dont think its a case of taking more water than the boiler can heat.

    Iv also tried without the rads on but still no joy.

    Does any of this new info still tie in with a sticking divertor vave or a blocked plate heat exchanger???

    Thanks
     
  8. kevplumb

    kevplumb

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  9. kieranstoke

    kieranstoke

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    Yes???

    Anybody else got any helpful input to this thread???
     
  10. Jezzy

    Jezzy

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    Yes your both right!!!
     
  11. DIYnot Local

    DIYnot Local

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