0E Medium

Boiler Fault Code 0E

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 0E appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is struggling to detect the temperature of your hot water cylinder, which means it may fail to heat your water properly. (As reported on Viessmann Vitodens)

Pick your boiler brand for the 0E fix

Viessmann 0E 1 model

Source

Information for the 0E 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