Low
17 on Baxi 124 Combi

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.

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.

What the manual says

Manufacturer manual

Boiler operating mode

From this model's manual
Verified against the Baxi 124 Combi Combi 2 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

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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