BoilerFaultCodes CH Fault Medium
Boiler Fault Code CH Fault
Also written as CHFAULT — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code CH Fault appears across 1 boiler brand and 3 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has encountered a problem specifically with the central heating operation, meaning your radiators likely won't heat up even though your hot water might still work. (As reported on Baxi Combi Elite)
Pick your boiler brand for the CH Fault fix
Source
Information for the CH Fault 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