BoilerFaultCodes 215 High
Boiler Fault Code 215
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 215 appears across 1 boiler brand and 5 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 that the internal fan responsible for venting exhaust gases failed to start properly during its initial safety check. (As reported on Worcester Bosch Greenstar 27CDi)
Pick your boiler brand for the 215 fix
Source
Information for the 215 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