The fridge in the subject line has been looked at by a (terrible) technician.
At first, freezer was cold, fridge was not - replaced the evap fan and it was back to working order. Then the power went out and likely surged. Fridge went dead - no compressor, no fans, no defroster nothing but lights and ice maker work after the power outage. The board-switch (looks like this http://www.appliancepartspros.com/frigidaire-board-switch-terminal-241739710-ap5645865.html) has no lights on, doesn't respond to resets, and beeps about once every 4 seconds without stopping. I suspect that the board-switch (it's the climate control module inside the fridge) is bad.
Per manufacturer's recommendations, I unplugged, let sit with doors open, then replugged, then closed doors. This worked the first few times but the issue recurred. Now the fridge won't work at all. The tech said to replace the evap fan again, so I did. No change. I have the board-switch part linked above in the mail, but I'm concerned about spending money replacing a bunch of parts if the fridge is beyond reasonably priced help. I know both door switches work (lights turn on and off).
Any tips for further investigation? I'm an avid DIYer with moderate experience, but I don't have much experience with refrigerators.