Eddie B Harker Heights , TX May 13, 2023 Appliance: Roper Refrigerator RT18BKXKQ03 THe freezer wasn’t freezing the food the refrigerator lower part worked. Replaced the Defrost Thermostat in the freezer. Read More... 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes Tools: Socket Set