17 Low

Baxi 17 Fault Code

The Baxi 17 fault code means: your boiler is currently reporting its status rather than a fault, which usually indicates it is in a specific operating mode or is busy processing a command.. It appears on 3 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 operating mode
Typical repair cost £0-80 (including labour)

DIY fix possible

Check if the room thermostat or programmer is calling for heatWait up to 10 minutes to see if the code clears as the boiler completes its cycleTurn the selector switch to 'Reset' for 5 seconds and then back to the original position

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Avoid the next call-out bill

A cover plan would handle faults like 17: no call-out fees, no surprise bills.

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Baxi models that show the 17 fault code

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

Source

Baxi 17 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