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