Leaking aavs on central heating system?

[chrispow01]

Hey, they look in good condition to me, the ones ive seen leaking have very obvious signs of leakage, staining scale etc, is the ceiling directly below wet?

 

[Gray0689]

Hey, they look in good condition to me, the ones ive seen leaking have very obvious signs of leakage, staining scale etc, is the ceiling directly below wet?

The one with brass cap looks like it's been leaking stained if you look close

 

[paulnwales]

im sure you can get one faster than friday mate, id want it soting quickly. i just googled your area and there are a huge amount of plumbers there. try puting a new thread on here sayin plumber wanted in tunbridge or something. Just make sure they actually are a plumber!

 

[chrispow01]

so it does !

 

[Prenzie]

Hi, yes, the roof timbers under and beside the AAVs get soaked through, but there is a spray pattern on some of them, so I am not sure it's just a case of one of the AAVs leaking slowly, I think one (or both) are spraying out water in an arc (like a garden sprayer). This water then gets soaked up by the timbers (some of them are wet at the bottom but not at the top) and the plaster board, and comes down under door frames etc. Unfortunately in the past, there has been a delay effect before I notice the water coming through the ceilings underneath and then I fill up the system and then I can't see the water coming out of the AAVs. Since I topped up the system last, there hasn't been any new water coming through and if fitting new manual air vents doesn't stop the problem, at least now I am monitoring it several times a day, so I should be able to see where the water is coming from. Fingers crossed! Thanks for all your help.