BoilerFaultCodes 248 High
Boiler Fault Code 248
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 248 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 encountered a technical issue with its internal memory or electronic circuit board, which has stopped it from running safely. (As reported on Worcester Bosch Greenstar 2000)
Pick your boiler brand for the 248 fix
Source
Information for the 248 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