How much does it cost to fix boiler error code Ignition LOCKOUT?

Typical repair cost for the boiler Ignition LOCKOUT fault is £120-250 including labour.

Ignition LOCKOUT High

Boiler Fault Code Ignition LOCKOUT

Also written as IGNITIONLOCKOUT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Ignition LOCKOUT appears across 7 boiler brands and 34 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 because it failed to light the flame, which could be due to a simple issue like a gas supply problem or a fault with the internal ignition components. (As reported on Potterton Performa SL HE 9 2)

Pick your boiler brand for the Ignition LOCKOUT fix

Ariston Ignition LOCKOUT 6 models Baxi Ignition LOCKOUT 7 models Halstead Ignition LOCKOUT 2 models Ideal Ignition LOCKOUT 8 models Johnson Starley Ignition LOCKOUT 2 models Potterton Ignition LOCKOUT 6 models Worcester Bosch Ignition LOCKOUT 3 models

Source

Information for the Ignition LOCKOUT 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