PRV replaced but water still leaking from boiler

af2909_2

As per the title I have a Ferroli Domina N80 boiler, I have recently had the expansion vessell replaced (as the diapraghm had split) and had the relief valve replaced also. However, there is still water leaking out via the relief valve. Any suggestion as to what could be causing this?

Thanks :beer:

macman

No, but your first cal lis to the RGI who replaced it, as seemingly the job was not done properly.
Unless of course it is still overpressurising, in whic case the pressure gauge will clearly show you that. If so, it is possible that the valve on the top up loop is either slightly open, or faulty and allowing some water to pass when closed.

af2909_2

macman wrote: »

No, but your first cal lis to the RGI who replaced it, as seemingly the job was not done properly.
Unless of course it is still overpressurising, in whic case the pressure gauge will clearly show you that. If so, it is possible that the valve on the top up loop is either slightly open, or faulty and allowing some water to pass when closed.

Hi

The vessell is fine, when the CH fires up it goes no more than 1.8 bar and that's when it's running on full pelt when the house is cold (the old one went up to 2.5/2.6 bar :eek:) and my gas engineer who I usually use showed me that it was full of water

In my boiler the ferroli PRV comes as part of a manifold, the gas engineer who fitted it (another one as my regular one is working away until the new year :-( ) simply popped the old valve out of the manifold and popped it into the already fitted one (http://www.ebay.co.uk/itm/ferroli-safety-pressure-relief-valve-39805920-/280973236062?pt=UK_Home_Garden_Hearing_Cooling_Air&hash=item416b4f575e this is the one I had) . Am I to assume that this has messed up the spring mechanism and I'm back to square one?:eek:

Thanks for your help