How much does it cost to fix boiler error code Green/Red - blinking?

Typical repair cost for the boiler Green/Red - blinking fault is £90-180 including labour.

Green/Red - blinking Low

Boiler Fault Code Green/Red - blinking

Also written as GREENREDBLINKING — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Green/Red - blinking appears across 2 boiler brands and 10 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has detected a minor fluctuation in the water circulation system, but it is still operating safely and does not require immediate intervention. (As reported on Worcester Bosch Greenstar 8000 Style)

Pick your boiler brand for the Green/Red - blinking fix

Grant Green/Red - blinking 5 models Worcester Bosch Green/Red - blinking 5 models

Source

Information for the Green/Red - blinking 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