…but fret thou not, my leetle grasshoppah, because this is almost always a simple problem of the defrost heater burning out. Usually a simple inspection is all that’s needed to tell it’s bad.
Remove the back panel from the inside of the freezer and get some peepers on the evaporator coil. If it looks something like this…
… then that’s what I’m talking about. The defrost heater is at the very bottom of the evaporator coil, with the orange arrow pointing to it. It’s supposed to be a clear glass tube with a shiny metal spiral running through it. If it’s blackened or smokey or green, it’s fried. You need to replace it with the upgraded heating element. The new element is a dualy and looks like this:
Easy to install, it’s a plug n’ chug kind of a deal. And, in case you need it, the new element comes with complete destructions. You can get the new defrost heating element ratcheer:
http://www.repairclinic.com/SSPartDetail.aspx?s=t-GSS20IEMBWW-%3d%3dc42i1399613&PartID=1399613
To learn more about your refrigerator, or to order parts, click here.