Green Light Low

Baxi Green Light Fault Code

Also written as GREENLIGHT — same fault.

The Baxi Green Light fault code means: your boiler is working normally and simply letting you know that it is powered on and ready to provide heating or hot water.. It appears on 4 Baxi models 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 Indicator - Shows power is on when the selector switch is in the hot water or central heating positions.

DIY fix possible

No action required as this is the standard operating status indicator.

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Baxi models that show the Green Light fault code

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

Source

Baxi Green Light fault code information on this page is sourced and cross-checked against the official Baxi service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026