loud bang when boiler fires up, fault code F1 if it fails to fire?
Glow worm bioler spares?
Glow worm 100E small burner flame, now hot water?
Glow Worm Ultimate wont fire up?
My Glow Worm Micron 30FF wont light. How can I check whats wrong&fix it?
why is radiators hot when only water is on..HELP?