How much does it cost to fix boiler error code Lockout (LED Mode)?

Typical repair cost for the boiler Lockout (LED Mode) fault is £120-250 including labour.

Lockout (LED Mode) High

Boiler Fault Code Lockout (LED Mode)

Also written as LOCKOUTLEDMODE — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Lockout (LED Mode) 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 detected a safety fault and shut itself down to prevent damage, meaning your heating and hot water are currently unavailable. (As reported on Potterton Prima 30B)

Pick your boiler brand for the Lockout (LED Mode) fix

Potterton Lockout (LED Mode) 2 models

Source

Information for the Lockout (LED Mode) 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