Whirlpool Model GB2SHDXTS02 / S/N KY1331093

Refrigerator section does not cool but bottom freezer is cooling and making ice but is freezing up. I have replaced the capacitor, the control (jazz) board, and most recently, the damper assembly control. The damper was damaged but that was not the issue apparently! I am at a loss. I am pretty sure the evaporator fan/motor is working (pretty sure) but I am aware that it could also be the thermistor or the bimetal defroster. We have a borrowed fridge that has its own problems and won\'t last much longer! Please help!

I haven't checked those specifically. As much as I have found out about my fridge I don't know all! Do I need to check it unplugged and defrosted? This would seem to defeat the purpose. And getting into that section of the freezer looks daunting as I can find no diagrams or schematics to access that area with out breaking anything. Could you give me s basic step by step or refer me to something that can? I supe appreciate it and am pretty much ready to take it out to a field and put it down Office Space style. While not logical it would be immensely satisfying! Thanks again and look forward to hearing back from you!

The first video does look like mine, without the French doors. The second, not so much. My husband has a multimeter so I will check both and get back to you. I need to check the heater element and the bimetal defrost thingy. What about the thermistor? What ranges am I looking for? Thanks again for the help!