BoilerFaultCodes 375 697 High
Boiler Fault Code 375 697
Also written as 375697 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 375 697 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 is failing to light the burner because it cannot detect the ignition spark, meaning you currently have no heating or hot water. (As reported on Worcester Bosch 24i RSF)
Pick your boiler brand for the 375 697 fix
Source
Information for the 375 697 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