BoilerFaultCodes SENSOR STUCK LOCKOUT High
Boiler Fault Code SENSOR STUCK LOCKOUT
Also written as SENSORSTUCKLOCKOUT — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code SENSOR STUCK LOCKOUT 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 has stopped running because it cannot detect a change in water temperature, causing it to shut down for safety. (As reported on Johnson Starley J32 System ET)
Pick your boiler brand for the SENSOR STUCK LOCKOUT fix
Source
Information for the SENSOR STUCK LOCKOUT 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