BoilerFaultCodes 9797 High
Boiler Fault Code 9797
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 9797 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 signalling that the gas supply tap underneath the unit is likely turned off or is not supplying enough gas to the system. (As reported on Vokera Maxin)
Pick your boiler brand for the 9797 fix
Source
Information for the 9797 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