How much does it cost to fix boiler error code BURNER LIGHT ONLY?

Typical repair cost for the boiler BURNER LIGHT ONLY fault is £100-180 including labour.

BURNER LIGHT ONLY Low

Boiler Fault Code BURNER LIGHT ONLY

Also written as BURNERLIGHTONLY — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code BURNER LIGHT ONLY 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 is currently protecting itself from freezing by running in a special cold-weather mode, or the status light on your display has broken. (As reported on Worcester Bosch 24i/28i Junior)

Pick your boiler brand for the BURNER LIGHT ONLY fix

Worcester Bosch BURNER LIGHT ONLY 2 models

Source

Information for the BURNER LIGHT ONLY 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