vokera combi?

hi its running at 3 and it is dripping out of overflow! is it an easy fix or big job to get to!!££££

richard a
October 2011

System cold pressure should be about 1, If it dumps water out of overpressure valve when running, valve faulty, what pressure does it read when it starts to dump, usually about 3.5 for normal, but system should not get to that, if it does, maybe expansion vessle is full of water, so no expansion room

SD
October 2011