BoilerFaultCodes Indicator Neons High
Boiler Fault Code Indicator Neons
Also written as INDICATORNEONS — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Indicator Neons appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is displaying warning lights to signal an internal fault that is preventing it from operating correctly. (As reported on Main Combi 24)
Pick your boiler brand for the Indicator Neons fix
Source
Information for the Indicator Neons 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 7 July 2026