BoilerFaultCodes 112 High
Boiler Fault Code 112
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 112 appears across 2 boiler brands and 4 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has lost the ability to accurately measure the temperature of the water returning to it, so it has stopped working as a safety precaution. (As reported on Worcester Bosch WR325 RSF)
Pick your boiler brand for the 112 fix
Source
Information for the 112 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