BoilerFaultCodes L.E.D. I (Red) Emergency
Boiler Fault Code L.E.D. I (Red)
Also written as LEDIRED — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code L.E.D. I (Red) appears across 1 boiler brand and 6 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 that the water inside has become dangerously hot and has automatically shut itself down to prevent damage. (As reported on Ariston E-Combi One 30)
Pick your boiler brand for the L.E.D. I (Red) fix
Source
Information for the L.E.D. I (Red) 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