How much does it cost to fix boiler error code Ignition Lock-out neon?

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

Ignition Lock-out neon High

Boiler Fault Code Ignition Lock-out neon

Also written as IGNITIONLOCKOUTNEON — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Ignition Lock-out neon 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 stopped working because it failed to light the flame properly, so it has shut itself down for safety. (As reported on Halstead Best 80)

Pick your boiler brand for the Ignition Lock-out neon fix

Halstead Ignition Lock-out neon 2 models

Source

Information for the Ignition Lock-out neon 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