While you wait for answers, we may have found some information which could help you.
Click here for Best Heating House
loud bang when boiler fires up, fault code F1 if it fails to fire?
What does F43 error message mean on Glow Worm 24/30cx?
Glow worm 100E small burner flame, now hot water?
Why are my radiators are not heating?
Glow Worm Fuel Saver F not working properly ?
Replacing LP112 Programmer?