E46 High

Boiler Fault Code E46

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code E46 appears across 6 boiler brands and 27 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has shut down because a temperature sensor has detected that the water leaving the system is getting too hot. (As reported on Vokera Condexa Pro)

Pick your boiler brand for the E46 fix

Biasi E46 1 model Johnson Starley E46 1 model Keston E46 9 models Navien E46 6 models Ravenheat E46 9 models Vokera E46 1 model

Source

Information for the E46 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