We may have found other answers which could help you.
Click here for Boiler Heating PressureMy radiators not heating up?
My central heating is not working?
Which way to turn slotted screw to adjust water pressure up on a glow worm ?
I have moved into a flat am dissabled carnt get heating on unit flashing F1?
GS 24i junior boiler timer broken?
I have a 30cx glowwarm that is showing F4 as fault.I have no hot water?