How much does it cost to fix boiler error code Orange LED flashing?

Typical repair cost for the boiler Orange LED flashing fault is £90-160 including labour.

Orange LED flashing High

Boiler Fault Code Orange LED flashing

Also written as ORANGELEDFLASHING — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code Orange LED flashing appears across 1 boiler brand and 12 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 a problem with the internal temperature sensor that controls your central heating, meaning the system cannot accurately monitor the water temperature. (As reported on Sime Planet Dewy BFR)

Pick your boiler brand for the Orange LED flashing fix

Sime Orange LED flashing 12 models

Source

Information for the Orange 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 7 July 2026