Joan B Brookside , NJ November 03, 2023 Appliance: KitchenAid Refrigerator KBLS36MHW01 Kitchenaid Refrigerator Kbls36mhw01: Freezer did not defrost. How to replace Refrigerator Defrost Timer. Bought the defrost timer, based on your expert advice. This was absolutely the best advice. The repair service that came to my house told me that I needed a new refrigerator. Your people are really wonderful. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes