BoilerFaultCodes AL71 High
Boiler Fault Code AL71
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code AL71 appears across 2 boiler brands and 9 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 an issue with the sensor that monitors the temperature of the water leaving the unit, causing it to shut down as a safety precaution. (As reported on Vokera Mynute Vhe)
Pick your boiler brand for the AL71 fix
Source
Information for the AL71 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