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Mend Glow-worm F5 Glow Worm Boiler

Have an F5 fault on my Glow worm Boiler?

How can I fix the F5 fault on my Glow Worm as it does not seem to go away with resetting?

Darius
October 2011

Glow-worm Heating, Home Heating Systems F5 Glow Worm Boiler

F5 is the overheat fault code so depending on the type of system you have, conventional or combi i would check the pump is actually pumping, most conventional systems i.e. boiler with how water cylinder faults is the pump is running but not actually pumping.

steve
October 2011

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Glow-worm F5 Fault: Fixes & Troubleshooting