Low
AM001 on Baxi 224 Combi 2

Your boiler is simply notifying you that the hot water feature has been switched on, which is a normal setting rather than a fault.

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

DHW (Domestic Hot Water) mode enabled (0: Disabled, 1: Enabled)

Shared across the 224 Combi 2 range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s 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 display shows 'AM001' after a settings change or power cut.If hot water is working as expected, no action is required.If you wish to disable hot water, consult the user manual to change the DHW parameter settings.

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All 36 fault codes on the 224 Combi 2

Seeing a different code? Every code this model can display, in one place.

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