E031 High

Boiler Fault Code E031

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code E031 appears across 2 boiler brands and 7 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has stopped working because the fan, which safely pushes exhaust fumes outside, has encountered a physical obstruction or has stopped spinning correctly. (As reported on Vokera Synergy System)

Pick your boiler brand for the E031 fix

Source

Information for the E031 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