vaillant boiler keeps losing pressure

Discussion in 'Plumbing and Central Heating' started by francis chinery, 23 Apr 2006.

  1. francis chinery

    francis chinery

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    I have a vaillant boiler VC GB 242 EH and when i fill the system back up with pressure after about 6 hours the pressure goes down,it seems that the boiler fires up and just keeps on going and then pressure gauge goes up to max then looses pressure.
    I was told by one plummer that the exspansion vessel may need to be re-charged how do you do this?
    can anybody help
     
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  3. bobw1956

    bobw1956

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    unless you know what you are doing, call a heating engineer.
    otherwise do a search on the subject, its been a topic many times.
     
  4. corgiman

    corgiman

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    as bob says maybe better to get someone in

    it sounds like your plumber (not plummer ;) ) is spot on why didnt he do it for you?

    also maybe best to replace the expansion vessel.
     
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    DIYnot Local

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