Boiler Fault Code LA/HA

Also written as LAHA — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026

Fault code LA/HA appears across 1 boiler brand and 5 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has become too hot and has shut itself down as a safety precaution to prevent damage. (As reported on Ideal Esprit HE)