glow worm 35ci boiler water leak from valve

[halfajobmark]

Hi all,
I have a 4 year old boiler which recently started to loose pressure.
I turned the blue valve to re-pressure but then water has started to leak from a valve.After a few days at least a pint of water comes out then the boiler turns off and i have to re-presurrise again.
I called an engineer and he cleaned out the blue valve and said he fixed it.
It was fine while the heating was off and we just used the hot water function .Now we have the heating on it goes off every few days.
Is a faulty blue valve or something else?
cheers
Mark

Untitled

• halfajobmark
• 9 Nov 2010
• 1

Untitled

• halfajobmark
• 9 Nov 2010
• 1

Untitled

• halfajobmark
• 9 Nov 2010
• 1

 

[bobw1956]

Are you saying the blue valve is leaking?

 

[halfajobmark]

hi, no the water is leaking from the other valve i pictured.

 

[bobw1956]

The valve pictured is the reduced pressure zone valve,if thats leaking you will have to change it,easy if your mechanically minded

 

[holty]

also called a disconnector. quite common for going. also used on the saunier duval thema classic. might be worth replacing the blue filling valve as well. as there quite common for snapping and were redesigned slightly. as bobw1956 mentioned. quite easy to replace mainly all held in with clips. but boiler will need draining.

 

[halfajobmark]

thanks for the help - but the part that is leaking is the brass one in picture 2 - not the one with the red handle on it.
how do i drain it?
I have removed the blue valve with the clips before i re-seated the part inside and put it back on without draining anything - is that incorrect?

 

[mickyg]

change the whole filling loop kit,
http://cgi.ebay.co.uk/glow-worm-fil...arden_Hearing_Cooling_Air&hash=item4aa5e65260

water off, tap open. thats water side sorted
underneath the boiler there is a black tap, use this to drain boiler into bucket or whatever, put small hose on if needed.
Remove clips holding complete loop in and gently remove, careful of water spillage.
Reassemble with new loop, grease up orings before fitting. once clips are in give the loop a gentle tug at connections to make sure clips are in correctly.
refill, run heating and test, pat oneself on the back at a job well done

 

[holty]

but the part that is leaking is the brass one in picture 2 - not the one with the red handle on it.
how do i drain it?

you probably thought we ment pressure relief valve. but in the MIs it is called a reduced pressure zone valve. basically a check valve. based on a commercial rpz. but i think mickyg has summed up what needs doing.