While you wait for answers, we may have found some information which could help you.
Click here for Combi Boiler Central Heating Faulty
My central heating is not working?
fitting thermostat?
I have a 30cx glowwarm that is showing F4 as fault.I have no hot water?
Glow worm flexicom 30cx auto air vent - how do I replace?
GS 24i junior boiler timer broken?
Central heating not working?