Low
A.02 .76 on Baxi 400 Combi 2

Your boiler is displaying a background system code related to its internal settings that usually does not stop it from working.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Internal memory reserved for full customisation of settings.

From this model's manual
Verified against the Baxi 400 Combi 2 installation & service manual, page 73.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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