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Boiler help.....?

PostPosted: Sat Nov 28, 2015 3:38 pm
by Lewis1988
Hi all

My boiler keeps loosing pressure...aghhhhh

I have had the PRV replaced as it was dripping on the outside of the house so suspected the PRV was bust
But this hasn't cured the problem

Any ideas ???

Re: Boiler help.....?

PostPosted: Sat Nov 28, 2015 5:49 pm
by Viking
Has the prv now stopped leaking? If so put a bucket under the discharge pipe and make sure it's not opening when hot. If the bucket stays empty then you have a leak on the heating system or boiler (look for water).

If the bucket fills with water then you have probably got a failed expansion vessel. Check this and report back.

Re: Boiler help.....?

PostPosted: Sat Nov 28, 2015 8:49 pm
by moulin12
might sound obvious, but double check that any boiler filler valves are shut tight.