How much does it cost to fix boiler error code LED off?

Typical repair cost for the boiler LED off fault is £120-250 including labour.

LED off High

Boiler Fault Code LED off

Also written as LEDOFF — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code LED off appears across 1 boiler brand and 5 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has completely lost power and is unable to turn on, meaning it cannot provide any heating or hot water. (As reported on Grant Vortex Eco)

Pick your boiler brand for the LED off fix

Grant LED off 5 models

Source

Information for the LED off 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