BoilerFaultCodes 5356 High
Boiler Fault Code 5356
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 5356 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 has detected an issue with its internal heating component which is preventing it from safely warming your home or water. (As reported on Vokera Maxin)
Pick your boiler brand for the 5356 fix
Source
Information for the 5356 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