While you wait for answers, we may have found some information which could help you.
Success
Message
fitting thermostat?
water from taps is boiling hot?
Intermittent boilet fails to fire on heating?
Glow-worm micron 60ff boiler niosy ?
Loud clanging/Glow-worm Boiler?
radiators hot when water turned on?
boiler will not turn off (only manually)glow-worm micron 80ff?
Home heating systems?
Glow-worm 30cxl?
how can i fix my central heating. Glow-worm ultimate?
how to find a fault?
What can I do about a Glow-worm Flexicom 30cx fault code F11?