Varem expansion vessel

[mjt]

Hi

Ive been to look at unvented HW system that has been discharging.
its had a new PRV(pressure relief) fitted 2 years ago and seems to be working correctly.
i checked the expansion vessel which has a gauge on it showing one bar but when pressed the valve nothing came out ( air or water).
Reckon I should recharge it first and see how that works. Any other ideas boys?
System is about 15 years old

 

[secret squirrel]

Seems like a good starting point.

What should the pressure be according to MI's?

 

[mjt]

Cheers secret
Label says 3 bar max With factory per charge 2.1
Got a picture of it if I can work out how to put it on here fom my ipad lol

 

[secret squirrel]

Thats definetly where I'd start then,

If the pressure drops it may be the lining thingy inside that has a problem (can't remember what it is called, too many glasses of wine)

 

[mjt]

Balloon ?!? Lol

 

[snowhead]

Bladder(ed)