Top of refrigerator and freezer are warmer than bottom. Also, a large amoutnt of ice build up in the back of the freezer.

**Before you order a new part make sure you get the FULL model number off of the back of the refrigerator**
To even get to the back panel I had to melt the ice in the back of the freezer with a hair dryer. Once the ice was gone I removed 5 screws that held the panel that covers the coils. I melted more ice from the coils. I disconnected the connector for the old heater wiring harness and pooped the thermosat off. Then, removed the screws that held the heaters (2 per heater). Installed new heaters and connected wiring harness. Snapped new thermosat on. Replaced coil cover and plugged it back in.