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