E47 High

Boiler Fault Code E47

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code E47 appears across 3 boiler brands and 8 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 that the water returning to the unit is too hot, causing it to shut down for safety. (As reported on Vokera Condexa Pro)

Pick your boiler brand for the E47 fix

Johnson Starley E47 1 model Navien E47 6 models Vokera E47 1 model

Source

Information for the E47 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