é6 Emergency

Boiler Fault Code é6

Also written as 6 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code é6 appears across 2 boiler brands and 4 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 flame when there shouldn't be one, which means it is locking out for safety reasons. (As reported on Remeha Avanta 18V)

Pick your boiler brand for the é6 fix

Biasi é6 2 models Remeha é6 2 models

Source

Information for the é6 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