While you wait for answers, we may have found some information which could help you.
Success
Message
Central heating not working?
GS 24i junior boiler timer broken?
Home heating systems?
Glow worm flexicom 30cx auto air vent - how do I replace?
I have moved into a flat am dissabled carnt get heating on unit flashing F1?
How to fix glow worm 18 hxi ?
fitting thermostat?
Which way to turn slotted screw to adjust water pressure up on a glow worm ?
My central heating is not working?
BMU error code?
My radiators not heating up?
I have a 30cx glowwarm that is showing F4 as fault.I have no hot water?