I noticed a few weeks ago when i woke up that the boiler was shining 'low system pressure' so i topped it up and the heating worked fine. a week later heating and hot water was stopping again with the same problem. i can easily top it up but would like to know how to fix the problem because there is obviously a leak but i cant find one in the house?

Lisa Thomas, March 2006

check out side poss pressure realease valve is passing.if no leaks are apparent try adding a leak sealer to one of your radiators. u can buy it from b and q.

paul, March 2006