Water leaks in Kenmore Upright Freezers may occur if the seal on the unit is damaged or the drain tube may be clogged. In both cases, you will need to fix the problem to keep your freezer in top shape. Step 1: Replace the gasket. The seal on the freezer door is the most likely culprit for leaks. The gasket is the rubber or silicone material that keeps the door closed and seals the freezer. If the gasket is cracked, remove it and replace it with a new one. This can be purchased from your local hardware store or ordered online. If the gasket is intact but letting in too much cold air, try bleeding air from the freezer. To bleed air, close and lock the freezer door, and then remove the freezer cover. Remove the drain tube, which is the small metal tube that empties water from the freezer. Fill this tube with tap water. Close the freezer door, and then replace the drain tube. Once the freezer is sealed, you can refill it with water.  Step 2: Clean the drain tube. If the water in the drain tube is cloudy or foul, it may be caused by buildup on the tube. Remove the drain tube and empty it, and then clean it with a toothbrush. Rinse the tube with tap water, and then fix it.