BoilerFaultCodes A44 High
Boiler Fault Code A44
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code A44 appears across 2 boiler brands and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has lost its connection to the temperature sensor that monitors your hot water, meaning it cannot safely tell how hot the water is. (As reported on Euroterm E27 Plus)
Pick your boiler brand for the A44 fix
Source
Information for the A44 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 31 August 2026