We may have found other answers which could help you.
Click here for Boiler Not WorkingHome heating systems?
I have a 30cx glowwarm that is showing F4 as fault.I have no hot water?
My radiators not heating up?
fitting thermostat?
GS 24i junior boiler timer broken?
Glow worm flexicom 30cx auto air vent - how do I replace?