While you wait for answers, we may have found some information which could help you.
Click here for Worm Boiler Model
Replacing LP112 Programmer?
What does F43 error message mean on Glow Worm 24/30cx?
loud bang when boiler fires up, fault code F1 if it fails to fire?
Glow Worm Fuel Saver F not working properly ?
Glow worm 45/60 not firing up?
Why are my radiators are not heating?