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Vokera linea 24 hot water and ch not getting up to temp

Discussion in 'Plumbing and Central Heating' started by Nickholder, 6 Dec 2004.

  1. Nickholder

    Nickholder

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    Had problem with hot water going hot /cold .flushed system out,now central heating playing up.cannot get heating to remain on and rads are luke warm any ideas to whats going on. does any one know of a vokera engineer in the southend/essex area. thanks
     
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  3. kevplumb

    kevplumb

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    vent the system vent the pump :cry:
    check the auto air vent on the boiler is open
     
  4. Nickholder

    Nickholder

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    Thanks for the advice central heating works fine,no luck with the hot water it runs up to 45 starts banging and shuts down although the noise is coming from the top heat exchanger :?:
     
  5. kevplumb

    kevplumb

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    sec heat ex is (to use a tech term) full of cr*p try cleaning it
    if the top one is banging it cant lose the heat fast enough
     
  6. Nickholder

    Nickholder

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    Thanks for the advice.if i remove the hot water heat exchanger whats the best way of cleaning it
     
  7. kevplumb

    kevplumb

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    shouldnt tell you this i use hydrocloric acid
    put the acid in a bucket and gently lower the h/e in BE VERY CAREFUL
     
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  9. Nickholder

    Nickholder

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    hydrochloric acid seems a bit drastic is there anything else
     
  10. kevplumb

    kevplumb

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    could try formic acid (kettle descaler)
    but wont bet on it working :p
     
  11. Nickholder

    Nickholder

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    ok but where can i get hold of hydrochoric acid in such a large quantity
     
  12. kevplumb

    kevplumb

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    you only need a pint not exactly hard to get hold of
    having said that this is a hard water area :)
     
  13. Nickholder

    Nickholder

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    thanks for all the advice il try and get some for the weekend
     
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