LED1 (green) Low

Boiler Fault Code LED1 (green)

Also written as LED1GREEN — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code LED1 (green) 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 is receiving power and is currently in standby mode, ready to operate. (As reported on Ferroli Arena)

Pick your boiler brand for the LED1 (green) fix

Ferroli LED1 (green) 1 model

Source

Information for the LED1 (green) 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 7 July 2026