Recent content by pep

Have a look through the forum. Loads of problems with the pressure in combi boilers has been covered. See mine as a prime example. Not great news but not the end of the world. :lol: :lol:

Thanks to both of you for your input. I think I will go for fitting an auxiliary ex vessel as when I pressed the needle in the valve it did start to drip. Can I purchase a universal one ? (non Ravenheat) Do I need to isolate the original ? What cost approx are they ? One last question...

Thanks for youe reply. I can see from previous posts that the expansion vessel needs (depending on make) beetwen .5-1 bar of pressure pumped into it. I am mechanically minded so I am trying to get a clear picture in my mind of how the boiler works. Am I right in thinking that the expansion...

I have budgeted to replace my ravenheat combi next spring. However, I think I have a problem with the expansion vessel, the pressure rises to 3 bar from 1 when the c h is put on then the prv lets water drip out . when the system is cold the bar reads 0. Is it safe to keep topping up for this...