BoilerFaultCodes STANDBY NEON Low
Boiler Fault Code STANDBY NEON
Also written as STANDBYNEON — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code STANDBY NEON 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 perfectly fine and is simply waiting for you to turn on a tap or adjust your heating thermostat. (As reported on Halstead Hero)
Pick your boiler brand for the STANDBY NEON fix
Source
Information for the STANDBY NEON 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