How much does it cost to fix boiler error code LED 1?

Typical repair cost for the boiler LED 1 fault is £90-180 including labour.

LED 1 High

Boiler Fault Code LED 1

Also written as LED1 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code LED 1 appears across 2 boiler brands and 11 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 completely unresponsive because it is not receiving any power, which might be due to a tripped switch, a disconnected plug, or a blown internal fuse. (As reported on Ferroli Hawk II)

Pick your boiler brand for the LED 1 fix

Ferroli LED 1 5 models Myson LED 1 6 models

Source

Information for the LED 1 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