e0 High

Boiler Fault Code e0

Also written as E0 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code e0 appears across 5 boiler brands and 39 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 a problem with its internal temperature sensors, meaning it cannot accurately monitor the water temperature and has shut down as a safety precaution. (As reported on Remeha Avanta Plus)

Pick your boiler brand for the e0 fix

Baxi e0 23 models Ideal e0 1 model Remeha e0 11 models Viessmann e0 1 model Worcester Bosch e0 3 models

Source

Information for the e0 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