How much does it cost to fix boiler error code 264?

Typical repair cost for the boiler 264 fault is £150-300 including labour.

264 High

Boiler Fault Code 264

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code 264 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 is struggling to breathe properly, meaning it cannot safely clear exhaust gases and has shut down to protect your home. (As reported on Worcester Bosch Greenstar 27CDi)

Pick your boiler brand for the 264 fix

Worcester Bosch 264 5 models

Source

Information for the 264 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