How much does it cost to fix boiler error code LED1?

Typical repair cost for the boiler LED1 fault is £100-250 including labour.

LED1 High

Boiler Fault Code LED1

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code LED1 appears across 1 boiler brand and 8 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is not detecting the stable electrical power it needs to function correctly, which is usually caused by a loose connection or an issue with your home's power supply. (As reported on Ferroli DOMINAplus F24D)

Pick your boiler brand for the LED1 fix

Ferroli LED1 8 models

Source

Information for the LED1 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