BoilerFaultCodes E02 High
Boiler Fault Code E02
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E02 appears across 19 boiler brands and 152 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 it has detected it is getting too hot, usually caused by poor water flow or a lack of water in the system. (As reported on Remeha Quinta 30)
Pick your boiler brand for the E02 fix
Alpha E02 29 models Ariston E02 5 models Atag E02 3 models Baxi E02 7 models Biasi E02 11 models Ferroli E02 9 models Halstead E02 6 models Heatline E02 7 models Ideal E02 6 models Intergas E02 6 models Johnson Starley E02 11 models Keston E02 9 models Navien E02 7 models Potterton E02 6 models Ravenheat E02 9 models Remeha E02 8 models Saunier Duval E02 6 models Viessmann E02 1 model Vokera E02 6 models
Source
Information for the E02 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