Abe Y Parkville , MD September 05, 2017 Appliance: Whirlpool Refrigerator WRB322DMBM00 Whirlpool Refrigerator Wrb322dmbm00: Ice maker stopped working. How to replace Refrigerator Ice Maker Assembly. I replaced the ice maker and now we have ice again! The replacement was quick and easy. I took off the door and sliding tray for easier access. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes