LED1 (green) Low

Ferroli LED1 (green) Fault Code

Also written as LED1GREEN — same fault.

The Ferroli LED1 (green) fault code means: your boiler is receiving power and is currently in standby mode, ready to operate.. It appears on 1 Ferroli model in our database.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description: Power ON

DIY fix possible

No action is required as this is a normal operating status indicator.

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Ferroli models that show the LED1 (green) fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Ferroli LED1 (green) fault code information on this page is sourced and cross-checked against the official Ferroli service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026