Low
CM190 on Baxi 400 Combi 2

This code is not actually a fault, but an information message indicating the current temperature setting for your heating zone.

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

Zone ambient set point °C

From this model's manual
Verified against the Baxi 400 Combi 2 installation & service manual, page 56.
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 your thermostat or room controller to see if you have accidentally entered a settings menuPress the 'Reset' or 'Back' button on the boiler interface to return to the main displayRefer to your user manual to navigate out of the advanced settings view

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