worcester 230 combi

great forum
My boiler loses pressure only when the heating is running the pressure does rise but i have not let the prv release the pressure i have done it myself.
after reading this i am assuming that it is the expansion vessel look an average job to replace. Is it worth checking the pressure in it myself and is there a way to confirm it is U/S.Is there any thing to look out for when i change it. (never run right since the "bosch engineer" serviced it)

Do a little searching and you will soon find instructions on how to repressurise it.

Tony

I am aware on how to repressurise the vessel was unsure if it was worth checking with the symptons i have.and will doing this achieve anything if it is U/S

Until you repressurise you will not know if it has failed.

Its always better to do the easier and cheaper things first, thats what professionals do!

We dont rush into changing expensive parts "just in case its failed">

Tony