How much does it cost to fix boiler error code Green LED On, Yellow LED On?

Typical repair cost for the boiler Green LED On, Yellow LED On fault is £80-120 including labour.

Green LED On, Yellow LED On High

Boiler Fault Code Green LED On, Yellow LED On

Also written as GREENLEDONYELLOWLEDON — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Green LED On, Yellow LED On 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 has lost water pressure and needs to be topped up to function correctly again. (As reported on Vokera Option)

Pick your boiler brand for the Green LED On, Yellow LED On fix

Vokera Green LED On, Yellow LED On 1 model

Source

Information for the Green LED On, Yellow LED On 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