BoilerFaultCodes AL 62 High
Boiler Fault Code AL 62
Also written as AL62 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code AL 62 appears across 1 boiler brand 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 identified that it needs to perform a self-tuning sequence to ensure the gas and air are burning correctly, often triggered after a part has been replaced or a power disruption. (As reported on Sime Murelle Pro HE MkII Combi)
Pick your boiler brand for the AL 62 fix
Source
Information for the AL 62 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