BoilerFaultCodes 369 Medium
Boiler Fault Code 369
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 369 appears across 2 boiler brands 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 detected an issue outside of its main internal components, often related to an external accessory like a smart thermostat, external sensor, or communication fault between connected devices. (As reported on Ideal Logic Air)
Pick your boiler brand for the 369 fix
Source
Information for the 369 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