BoilerFaultCodes F0 238 High
Boiler Fault Code F0 238
Also written as F0238 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code F0 238 appears across 1 boiler brand and 11 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 electrical communication problem with the internal gas control system, meaning it cannot safely light the flame to provide heating or hot water. (As reported on Worcester Bosch 26 CDi Xtra)
Pick your boiler brand for the F0 238 fix
Source
Information for the F0 238 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