Freezer had a smell of burnt wire

After determining that the condenser motor, fan, nor ice maker were the source of the smell. Removed all the food and the rear panel of the freezer. Totally defrost the freezer before you remove the back panel. The panel has a gasket on either side, which are easy to remove and make removal of the panel easier. The back panel is also held on with 9 screws. The biggest problem was fitting both my hands into the freezer with a large body attached to the hands. The defrost heater had a burnt wire attached to the top heater. The two heaters remove with 2 screws each. The heater thermister snaps onto the freezer coils and is included in the defroster heater kit.
Replace the heater thermisters and wiring in the reverse order of removal. Re-attach the two gaskets to the back panel and slide the panel up from the bottom, this will allow re-assembly without removing the shelf brackets. Replace the 9 screws and yo are done.