We may have found other answers which could help you.
Success
Message
My radiators not heating up?
GS 24i junior boiler timer broken?
fitting thermostat?
How to fix glow worm 18 hxi ?
I have moved into a flat am dissabled carnt get heating on unit flashing F1?
Home heating systems?
My central heating is not working?
Central heating not working?
BMU error code?
Which way to turn slotted screw to adjust water pressure up on a glow worm ?
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?