The pressure on my boiler keeps rising and then dropping
This happens because the water in the heating system expands when hot and contracts when cold so on a sealed system or combi an expansion vessel is fitted the pipework in the boiler or outside the...
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Re: The pressure on my boiler keeps rising and then dropping
You forgot to add, that as a very short term quick fix (if the rubber diaphragm has split) you could drain about 1/4 of the water out of one radiator, which would then sort of act as an expansion...
View ArticleRe: The pressure on my boiler keeps rising and then dropping
I was concentrating on getting across the fundamentals of why it drops rather than how to bypass the problem but since this is being used as a general forum of replies suggested alterations to...
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Re: The pressure on my boiler keeps rising and then dropping
Peter , please don't delete your most helpful posts, I only mentioned the draining down a 1/4 of the water in one rad as a temporary fix, perhaps if this happened to the OP on a Saturday afternoon and...
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