While you wait for answers, we may have found some information which could help you.
Click here for Heating Fault Glow WormGlow worm 100E small burner flame, now hot water?
boiler internal fuse keep blowing out!?
Glow Worm Fuel Saver F not working properly ?
Replacing LP112 Programmer?
loud bang when boiler fires up, fault code F1 if it fails to fire?
Why is my upstairs heating always on?