While you wait for answers, we may have found some information which could help you.
Click here for Space Saver Hopefullyradiators hot when water turned on?
Loud clanging/Glow-worm Boiler?
What can I do about a Glow-worm Flexicom 30cx fault code F11?
how can i fix my central heating. Glow-worm ultimate?
water from taps is boiling hot?
Glow-worm 30cxl?