J Thomas A Raymond , MS February 03, 2020 Appliance: Whirlpool Ice Maker KUIS18PNZB1 Whirlpool Ice Maker Kuis18pnzb1: Making too much ice. How to replace Ice Maker Bin Thermistor. Looked online for solution to the problem. Replaced the thermistor. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes