Central Heating LED flashing High
Boiler Fault Code Central Heating LED flashing
Also written as CENTRALHEATINGLEDFLASHING — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Central Heating LED flashing 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 lost the ability to accurately measure the temperature of the water being sent to your radiators, so it has shut down to prevent the system from getting too hot. (As reported on Heatline Capriz 25 System)
Pick your boiler brand for the Central Heating LED flashing fix
Source
Information for the Central Heating LED flashing 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