While you wait for answers, we may have found some information which could help you.
Click here for Best Heating House
Replacing LP112 Programmer?
Why is my upstairs heating always on?
how can I fix my old glow worm central heating boiler model 65-80?
loud bang when boiler fires up, fault code F1 if it fails to fire?
boiler internal fuse keep blowing out!?
What does F43 error message mean on Glow Worm 24/30cx?