How much does it cost to fix boiler error code BURNER LOCK OUT?

Typical repair cost for the boiler BURNER LOCK OUT fault is £120-250 including labour.

BURNER LOCK OUT High

Boiler Fault Code BURNER LOCK OUT

Also written as BURNERLOCKOUT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code BURNER LOCK OUT appears across 4 boiler brands and 14 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 cannot ignite its internal flame, which means you currently have no heating or hot water. (As reported on Potterton Promax HE Store)

Pick your boiler brand for the BURNER LOCK OUT fix

Grant BURNER LOCK OUT 9 models Ideal BURNER LOCK OUT 2 models Potterton BURNER LOCK OUT 1 model Worcester Bosch BURNER LOCK OUT 2 models

Source

Information for the BURNER LOCK OUT 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