According to the Kenmore owner’s manual, the overall capacity of the Kenmore upright freezer should be no greater than 3 pounds per cubic foot of freezer space. This capacity is recommended to be decreased if the food going into the freezer is not already frozen.
The reason is that the cold air cannot effectively circulate and keep everything frozen without enough free space.
In order to maximize the capacity and improve air circulation, the model number 253-9260411 offers an adjustable wire shelf and juice rack. The shelf can be set to three different heights, allowing larger frozen items to sit on the bottom and smaller ones on the shelf.
The juice rack is on the bottom of the freezer and offers space for cans or jars of juice and other round objects.
If the upright freezer seems to be running too long without stopping, it could be a sign that you have surpassed the machine’s capacity. The manual recommends avoiding placing hot food in the freezer if the freezer is already relatively full, as this will exceed the freezer’s ability to sustain an acceptable frozen temperature.
Avoid placing heavy items on the freezer shelves, because the shelves can bend and warp over time. Additionally, Sears only replaces up to $100 worth of lost food should your freezer break, so avoid filling the freezer with more than this amount in case of a breakdown.