BoilerFaultCodes 212 High
Boiler Fault Code 212
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 212 appears across 1 boiler brand and 16 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is overheating because the water inside is heating up faster than it can be moved around the system. (As reported on Worcester Bosch GB162)
Pick your boiler brand for the 212 fix
Source
Information for the 212 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