BoilerFaultCodes Sensor Fault Neons High
Boiler Fault Code Sensor Fault Neons
Also written as SENSORFAULTNEONS — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Sensor Fault Neons 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 struggling to read its own temperature, so it has turned itself off to avoid heating the water incorrectly. (As reported on Baxi System 35/60 / 60/100)
Pick your boiler brand for the Sensor Fault Neons fix
Source
Information for the Sensor Fault 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 27 April 2026