é2 High

Boiler Fault Code é2

Also written as 2 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code é2 appears across 7 boiler brands and 23 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 water is not circulating correctly, often because there is trapped air or the system pressure is too low. (As reported on Remeha Avanta Plus)

Pick your boiler brand for the é2 fix

Atmos é2 4 models Biasi é2 2 models Daikin é2 3 models Dimplex é2 1 model Halstead é2 1 model Remeha é2 9 models Worcester Bosch é2 3 models

Source

Information for the é2 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