BoilerFaultCodes EE3344 High
Boiler Fault Code EE3344
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code EE3344 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 failing to detect the airflow needed to safely burn gas, so it has shut down to prevent any risk. (As reported on Ariston Clas One)
Pick your boiler brand for the EE3344 fix
Source
Information for the EE3344 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