Peripheral / Pump LED Green Low

Baxi Peripheral / Pump LED Green Fault Code

Also written as PERIPHERALPUMPLEDGREEN — same fault.

The Baxi Peripheral / Pump LED Green fault code means: your boiler is correctly receiving a signal from your thermostat telling it to turn on and start heating your home.. It appears on 2 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: Thermostat is calling for heat

DIY fix possible

Check that your room thermostat is set to the desired temperatureEnsure your programmer or timer is set to an 'ON' periodWait for the boiler to complete its start-up sequence

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Baxi models that show the Peripheral / Pump LED Green fault code

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

Source

Baxi Peripheral / Pump LED Green 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 7 July 2026