BoilerFaultCodesGlow-worm F62 Fault Code
The Glow-worm F62 fault code means: your boiler has detected that the gas valve is not closing properly or there is a ghost flame, which is a safety issue that stops the boiler from running.. It appears on 1 Glow-worm model in our database.
Technical description: Gas valve closure fault
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Avoid the next call-out bill
A cover plan would handle faults like F62: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
Glow-worm models that show the F62 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Glow-worm F62 fault code information on this page is sourced and cross-checked against the official Glow-worm service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026