BoilerFaultCodes Boiler sensor High
Boiler Fault Code Boiler sensor
Also written as BOILERSENSOR — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Boiler sensor 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 has detected an issue with its internal sensors and has stopped running to prevent any damage or incorrect temperature readings. (As reported on Ideal Concord CXA 40-120)
Pick your boiler brand for the Boiler sensor fix
Source
Information for the Boiler sensor 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