Robert S Cumming , GA November 28, 2021 Appliance: Whirlpool Ice Maker GI15NDXZS1 Whirlpool Ice Maker Gi15ndxzs1: The ice machine did not produce ice. How to replace Valve. I replaced the water inlet valve and water reservoir empty pump. Repair took about an hour as I chose to remove the ice machine and put it on the counter to save my back and knees. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes