I defrosted the refrigerator (took off the panel in the freezer side and used a blowdryer) I then replaced the defrost heater assembly which was a pretty easy replacement. I watched the youtube video to see how the replacement was done and had no issues. Now the fridge is working like a charm, back to 35 degrees and not even turned all the way up! (the actual replacement of the assembly only took about 15 minutes, but of course it did take about 45 minutes to get the fridge defrosted all of the way from the ice buildup)