Sorry steve, didn't mention that i am actually a qualified heating engineer. I replaced a valve on a worcester greenstar 30CDI combi few weeks ago, very irritating job and that was with the manual. Very delicate set up with flue analyser and gauge etc. This is an earlier model and set up is obviously different, do not have manual. Anyone set one up before? If not, i'll just get worcester in to do the job.... but would appreciate feedback first
Mark, August 2009