Neon6 High

Boiler Fault Code Neon6

Also written as NEON6 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code Neon6 appears across 2 boiler brands and 8 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has detected an issue with how it clears exhaust fumes, preventing it from firing up for safety. (As reported on Potterton Performa System HE)

Pick your boiler brand for the Neon6 fix

Glow-worm Neon6 7 models Potterton Neon6 1 model

Source

Information for the Neon6 fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026