Ronald M Chandler , OK June 22, 2015 Appliance: General Electric Refrigerator LSS25XSWCSS Ge Refrigerator Lss25xswcss: I had problems with the freezer not cooling due to ice on the cooling coils. How to replace Refrigerator Temperature Sensor. I changed out the defroster unit and it worked fine. Later I thought I might also need a defroster thermostat and possibly temps sensors. Thus, I bought them "just in case". I have not installed them as the defroster unit seemed to have solved the problem. ApplicancePartsPros.com is an excellent source of parts and advice. I am glad I found this website. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes