What should I do if the Door Ajar Alarm keeps sounding?

The Door Ajar Alarm sounds when the refrigerator door(s) or freezer drawer has been open for 5 minutes while cooling is on, and it repeats every 2 minutes. Close all doors and the freezer drawer to turn off the alarm. To mute the audible alarm temporarily while keeping the doors open, such as during cleaning, press any button on the control panel. (Page 21)