BoilerFaultCodes LE High
Boiler Fault Code LE
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code LE appears across 2 boiler brands 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’s internal computer has encountered a critical error and cannot communicate properly with the system. (As reported on Ideal Mexico HE)
Pick your boiler brand for the LE fix
Source
Information for the LE 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 27 April 2026