vokera boiler pressure problem

1 Feb 2007
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United Kingdom
my vokera sabre combi boiler has ahigh pressure problem. i have disconnected the water filling loop pipe but still the water pressure goes up. can anyone help me. thanks.
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In my vokera manual there is a sentence which describes how to manually open the PRV (using a small lever I think)
i can release the pressure when it rises but this is not curing the problem. any ideas?? thanks
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usually the domestic heat exchanger is holed and the mains water is getting to the heating side

isolate the cold feed to the boiler then leave a hot tap open

if the pressure in the heating drops then you have found the prob ;)

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