RED lockout led High
Boiler Fault Code RED lockout led
Also written as REDLOCKOUTLED — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code RED lockout led appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has failed to ignite and has locked itself out for safety, meaning you will not have any heating or hot water until it is reset. (As reported on Ideal Europa)
Pick your boiler brand for the RED lockout led fix
Source
Information for the RED lockout led 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