My Kidde Smoke Detector, model KN-COSMXTR-BA, manufactured 2015 Nov 11, failed to alert me of 2 separate smoke incidents in my house on 11/24/2022. In both incidents, the main level of my house filled up with smoke caused by a leak in a baking pan inside of my oven. Each time, the smoke was so bad that members of the house evacuated.
The unit is hard wired and located on the same level as the incident. Unit seemingly works when when using the “test” button, and the unit did alarm for smoke a few days after the incident.