E44 High

Boiler Fault Code E44

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code E44 appears across 5 boiler brands and 13 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 fault with the sensor that monitors the water returning to the unit, causing the system to stop working for safety. (As reported on Vokera Condexa Pro)

Pick your boiler brand for the E44 fix

Biasi E44 2 models ECA E44 3 models Keston E44 3 models Remeha E44 3 models Vokera E44 2 models

Source

Information for the E44 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