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    Vaillant VCW GB 221 H Boiler not producing enough heat

    So I eventualy got round to phoning the Vaillant group service and they said they would send an engineer round to replace the non functional temperature guage at a cost of over £200, but this would not include a service! I would have to arrange that seperately at further cost! So I decided to...
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    Vaillant VCW GB 221 H Boiler not producing enough heat

    I forgot to mention that in all the time I have had this boiler I don't remember the pilot light ever going out! I only remember having to relight it once after I accidently pressed the gas cut off button. It is very difficult to see the pilot light so I thought it was out when it was not and...
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    Vaillant VCW GB 221 H Boiler not producing enough heat

    Thanks for the offer Tony but I don't have any transport of my own and I don't think it will fit in my rucksack! Even if I did by the time I have disconnected it and ripped it off the wall it would most likely be a write off anyway! Seriously though, If you are likely to be in this area anytime...
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    Vaillant VCW GB 221 H Boiler not producing enough heat

    Many thanks for that. I have printed it out. I do have the service manual for it so I might have a look myself. I have had the covers off before to have a look but never touched anything. Don't worry, I will not be messing with any of the gas parts as I know how dangerous that can be! I will...
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    Vaillant VCW GB 221 H Boiler not producing enough heat

    OK, that got a useful response! So it does look like I will not be able to do it myself and I will have to call out a CORGI engineer. Oh well. I just wanted to make sure.
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    Vaillant VCW GB 221 H Boiler not producing enough heat

    Yes obviously I can do that but the whole point of posting here was to avoid that expense if at all possible by seeking a simple fix I might be able to do myself! I feel I must refer you to an old Chinese proverb. If you have nothing to say, then say nothing!
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    Vaillant VCW GB 221 H Boiler not producing enough heat

    I just checked. It was installed in June 1996. Longer ago than I thought! I don't think it has ever been right from the first day though. I seem to remember having it serviced a few years ago but all the engineer did was to go round it with a brush saying there is not much you can do with these...
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    Vaillant VCW GB 221 H Boiler not producing enough heat

    My Vaillant VCW GB 221 H boiler will not produce enough heat. Well, not continously anyway. It gets up to temperature OK fairly quickly but then cuts the gas off not turning it back on until the water temperature has dropped to around 40 degrees. It will then go back up to 90 degrees or whatever...
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