i have a glow worm space saver 75 ,we had a power cut weeks ago after that the boiler keeps tripping the main for the whole house, i fiddle with the isolated switch the wiring and it worked for a couple weeks but now its tripping the fuse again . pleace help !!!!

andrew, September 2009

you have a short circuit somewhere on the boiler, or a loose connection. if it happens when the boiler has been on for a while then it is probably the gas valve solenoid, the pump (or the fan if it has one) causing the problem once the heat has built up inside it.

Ian, September 2009