garethgas said:
@ Poxi
Good point. Doubt we'll get an answer though
heres my answer, boiler was serviced and problem pointed out to the engineer when he left it was ok a few hours later same fault occured he was due to return to replace a leaking feed pipe, he looked at the boiler again but couldnt find the fault, I do not use this site for a "wind up" just asked for help and got a lot of sarcsm and accusations, this is supposed to be a diy forum.