Hi Gene,
Freezer works great and frige was warm so after reading all the posts here i removed the rear panel and found a block of ice so i defrosted it and everything is back to normal but i know it wont last. The heating element is a double that runs along the bottom and looks similar to the same element is a stove. Question is how can i test the element or fire it off to see if it gets hot? And how can i test the bi metal thermostat? Damper fan works fine and damper is open.

Hello Gene,
I've never repaired a refridge before, but I've worked on lots of other stuff so I'll give it a shot, anyway I had the same problem, cold freezer, warm fridge. Defrost evaporator and 4 days later block of ice again. Local repair guy told be I've already diagnosed the problem and in 10 years he never had to replace a heater. So I ordered the main board and thermodisc from your site, (My repair guy said you had a great price!) Took about 1/2 hour to install, but confused but I still followed directions. Cutting wires for thermistor and another for capacitor? So hopefully that took care of it. Operating good for now, will update this in a week.

Thanks, these posts where very helpful.