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loud bang when boiler fires up, fault code F1 if it fails to fire?
why is radiators hot when only water is on..HELP?
how can I fix my old glow worm central heating boiler model 65-80?
Glow worm 45/60 not firing up?
Glow worm 100E small burner flame, now hot water?
boiler internal fuse keep blowing out!?