loud bang when boiler fires up, fault code F1 if it fails to fire?
how can I fix my old glow worm central heating boiler model 65-80?
Glow worm 100E small burner flame, now hot water?
why is radiators hot when only water is on..HELP?
boiler internal fuse keep blowing out!?
My Glow Worm Micron 30FF wont light. How can I check whats wrong&fix it?