how can I fix my old glow worm central heating boiler model 65-80?
Glow worm 45/60 not firing up?
What does F43 error message mean on Glow Worm 24/30cx?
why is radiators hot when only water is on..HELP?
loud bang when boiler fires up, fault code F1 if it fails to fire?
Glow worm 100E small burner flame, now hot water?