Patti H Waelder , TX September 19, 2014 Appliance: KitchenAid Ice Cube Maker KUIS18NNJT5 Kitchenaid Ice Machine Kuis18nnjt5: Not producing ice. How to replace Thermistor. Went on-line read about under-counter ice makers. Found site that had lots of repair info and was able to make a good guess about what might be wrong. Found exactly the parts I needed at Appliance Parts Pro, they shipped them immediately and I had the machine repaired sooner than I could get a repairman out and probably saved $100's!! Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes