How much does it cost to fix boiler error code Burner On (Green) light flash?

Typical repair cost for the boiler Burner On (Green) light flash fault is £120-250 including labour.

Burner On (Green) light flash Medium

Boiler Fault Code Burner On (Green) light flash

Also written as BURNERONGREENLIGHTFLASH — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Burner On (Green) light flash 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 is currently trying to light its flame, but it is taking longer than expected to successfully start up. (As reported on Potterton Performa SL HE 9 2)

Pick your boiler brand for the Burner On (Green) light flash fix

Potterton Burner On (Green) light flash 1 model

Source

Information for the Burner On (Green) light flash 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