Michael E Canton , OH July 29, 2018 Appliance: Kenmore Chest Freezer 2539138580 Kenmore Freezer 2539138580: Freezer not cooling any more. How to replace Freezer Temperature Control Thermostat. First unit is 25 years old. Called Sears in they agreed it was the thermal control but part was no longer available and no replacement. I researched other freezer model temperature control unit and order one from AppliancePartsPros . Received parts quickly! Installed and test unit is working fine. maybe another few years. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes