Steven S Roseburg , OR September 02, 2015 Appliance: Model AMANA THI18S3W Freezer and fridge warm First cleaned cooling fins at bottom. Plugged!! Cooled well but still got warm again. Tested defrost timer, boarder line good so replaced it. Still was getting warm. After doing a lot of web searching I found a tree chart which showed a trouble shooting method. After dropping down the list my symptom was freezer thermostat was bad. Got one from the Pros.com and the problem was solved. Wish that the drop down chart was on the pros.com website, it would have saved time and food. Read More... Do-It-Yourself Rating: Repair Time Estimate: 2+ hours Tools: Nut Drivers, Screwdrivers