The Maplewood freezer picture
Almost every Maplewood home we visit has a second freezer — a chest unit in a Gladstone or Parkside basement, or an upright in an attached garage. That matters diagnostically, because those two locations create failures the kitchen unit never sees. An unheated Maplewood garage in January sits well below the temperature that tells the thermostat to run, so the compressor stops and the contents slowly thaw even though nothing is broken.
In the kitchen, a freezer that is cold but not freezing is nearly always a partial airflow problem. Frost creeping across the evaporator from a weak defrost circuit steadily reduces the air the fan can move; the compartment still gets cold air, just not enough of it. A gasket that no longer seals adds humid room air, which accelerates the frost and makes the whole thing worse each week.
Standalone chest freezers fail more simply: a lid gasket flattened by age, a thermostat drifting out of calibration, or a condenser coil packed with basement dust. Those are cheap fixes and worth doing, because a working 20-year-old chest freezer is a genuinely good appliance.