Kenmore 596-72003014 bottom freezer-unit is working fine except there is ice in the rear corners of the freezer and the bottom of freezer is a layer of ice (like an ice rink) also there is a visible trail in the front right corner of freezer bottom where water is dripping onto the kitchen floor. Any ideas?
Your drain tube is frozen and therefore not letting the water drain down into the pan. Access the drain hole and pour hot water into it to thaw it out. Here is a more detailed procedure: https://removeandreplace.com/2015/05/27/freezer-drain-frozen-water-dripping-into-refrigerator-how-to-fix/