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