Hi, first post here, I've been to these forums before but never needed to post as i've found the info I needed before but cant find what I need this time. I recently moved into a house, it has a Vokera Maxin combi boiler. Had a problem with one of the rads (it fell off the wall) but have sorted that out, now the boiler has pressure going past 3 bar (after sorting the rad I set set the pressure a 1 bar). Is there any way of me sorting this myself or should I be calling out a plumber. Is my boiler going to explode? Cheers Crissy :EDIT: I noticed the high pressure when the hot tap in upstairs bathroom stopped working.