BoilerFaultCodes Neon SGI High
Boiler Fault Code Neon SGI
Also written as NEONSGI — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Neon SGI appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is currently trying to light the flame, but if the light continues to flash indefinitely, it means the burner has failed to ignite. (As reported on Ideal Classic FF 330)
Pick your boiler brand for the Neon SGI fix
Source
Information for the Neon SGI 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