000 Low

Baxi 000 Fault Code

The Baxi 000 fault code means: your boiler is currently in standby mode and is simply waiting for a signal to provide heating or hot water.. 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: Boiler start sequence / Standby

DIY fix possible

Check your thermostat or programmer settings to ensure there is a demand for heatTurn up the heating temperature on your wall controllerEnsure your hot water timer is set to be active

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Baxi models that show the 000 fault code

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

Source

Baxi 000 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