299-360 Medium

Boiler Fault Code 299-360

Also written as 299360 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 299-360 appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler's external or built-in heating timer is experiencing a communication or hardware malfunction, preventing it from correctly signalling when the heating should turn on or off. (As reported on Worcester Bosch 24i RSF)

Pick your boiler brand for the 299-360 fix

Worcester Bosch 299-360 1 model

Source

Information for the 299-360 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 7 July 2026