We may have found other answers which could help you.
Click here for Heating Hot Water System
Glow worm 45/60 not firing up?
loud bang when boiler fires up, fault code F1 if it fails to fire?
boiler internal fuse keep blowing out!?
Replacing LP112 Programmer?
Glow worm 100E small burner flame, now hot water?
Why is my upstairs heating always on?