Lynn K Weedsport , NY May 29, 2021 Appliance: KitchenAid Refrigerator KSRP25FNSS00 Kitchenaid Refrigerator Ksrp25fnss00: Fridge not cold, but freezer at 0. How to replace Refrigerator Temperature Sensor Thermistor. Saw troubleshooting suggestion that diffuser might be bad. Video showing how to change the diffuser looked easy. Ordered it and thermistor. Super quick 2nd day delivery. Installed the parts and fridge works great again. A lot cheaper than new fridge!!! Thanks. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes