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Drop in pressure boiler
SHEILA54
Posts: 1,829 Forumite
Hi
The pressure gauge in my boiler is dropping one bar a day and I keep having to top it up.
I have had Homeserve check the boiler but they say that it is ok.
I have checked all visible pipes, rads etc for leaks.
I had a burst pipe which resulted in us moving out last year and my insurers have denied cover for water damage this year.
Has anyone any ideas as I am worried that there is a leak somewhere and I can't find it?

Thanks
The pressure gauge in my boiler is dropping one bar a day and I keep having to top it up.
I have had Homeserve check the boiler but they say that it is ok.
I have checked all visible pipes, rads etc for leaks.
I had a burst pipe which resulted in us moving out last year and my insurers have denied cover for water damage this year.
Has anyone any ideas as I am worried that there is a leak somewhere and I can't find it?
Thanks
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Comments
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Peel back your baby's eyelid to find no nationality or religious identity mark there. Peer at your baby's eyes for them to reflect back just people-throw away your flags and religious symbols...0
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we have a condesning combi with the same problem it was the safety valve that had gone .This is a system account and does not represent a real person. To contact the Forum Team email forumteam@moneysavingexpert.com0
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The expansion vessel needs checking before anything else. Can I assume Homeserve done this?0
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The expansion vessel needs checking before anything else. Can I assume Homeserve done this?
You would think so but I wasn't here and my son in law saw them. I don't know if I can contact them again as the person that came out said that the boiler was fine and he took their word for it.0 -
This happened to me a couple of weeks ago. I kept topping the boiler up and the next day the pressure would be low!
It seemed to happen after I bled my radiators, so I think one of the rads was acting as an expansion vessel.
I fixed it myself and was well chuffed, courtesy of UHM0 -
johnjackson wrote: »This happened to me a couple of weeks ago. I kept topping the boiler up and the next day the pressure would be low!
It seemed to happen after I bled my radiators, so I think one of the rads was acting as an expansion vessel.
I fixed it myself and was well chuffed, courtesy of UHM
What is UHM please?0 -
UHM is this site- http://www.ultimatehandyman.co.uk/expansion_vessel/index.php
There are three pages on that page that show how to test, repressurise or replace an expansion vessel.
When I checked my expansion vessel water came out of the tyre type valve, so I fitted an external one.
It took me about 3 hours, but only cost about £25 for the bits.
It has been working fine ever since!
Also on each page you will see a link to a video, which helps people like me ;-)0
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