How much does it cost to fix boiler error code Lockout fault?

Typical repair cost for the boiler Lockout fault fault is £100-250 including labour.

Lockout fault High

Boiler Fault Code Lockout fault

Also written as LOCKOUTFAULT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code Lockout fault appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has stopped working as a safety precaution and needs to be manually restarted to see if it can clear the internal error. (As reported on Vokera Option)

Pick your boiler brand for the Lockout fault fix

Vokera Lockout fault 1 model

Source

Information for the Lockout fault 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