We may have found other answers which could help you.
Click here for Boiler Heating Faultwhy is radiators hot when only water is on..HELP?
Why are my radiators are not heating?
Replacing LP112 Programmer?
What does F43 error message mean on Glow Worm 24/30cx?
Glow Worm Fuel Saver F not working properly ?
loud bang when boiler fires up, fault code F1 if it fails to fire?