2981 High
Boiler Fault Code 2981
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 2981 appears across 1 boiler brand and 6 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has switched itself off permanently because of repeated failed attempts to start, and it now requires a professional to safely unlock the system. (As reported on Worcester Bosch 1000)
Pick your boiler brand for the 2981 fix
Source
Information for the 2981 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