dripping combi overflow

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25 Jan 2006
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Location
Cleveland
Country
United Kingdom
Hi, I have a worcester Bosch 350 combi boiler. It has started to drip from the overflow and thus loses pressure slowly over a few days.(it as only a slow drip). Has anyone got an idea what the problem is? All answers greatfully received.
 
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Hello Keel,
Have a peek at my post and maybe we can come to some kind of arrangement ???? :LOL: :LOL:

Hope you find help here.
When my system was losing pressure the bloke fitted a 'new cylinder' thing, sorry not sure about the cost, but it took him a few hours to do.


Regards,

Ed
 
You need a new pressure relief valve. You could try opening it in case theres a bit of crud stuck on the seating.
 
you should fill your combi back up to between 1 & 1.5 bar, do this when the boiler is cold. fire up combi, if pressure rises to 3 bar, you have a problem with your expansion vessel. this would cause p.r.v to lift thus crud could now be under valve seat
 
Sponsored Links
Hello Keel,
Have a peek at my post and maybe we can come to some kind of arrangement ???? :LOL: :LOL:

Hope you find help here.
When my system was losing pressure the bloke fitted a 'new cylinder' thing, sorry not sure about the cost, but it took him a few hours to do.

A few hours? :eek:
 

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