SOLVED: Simple Fix, but confusing symptoms. The temperature control had 5 LEDS that would just flash constantly even after after a reset. Every few seconds the freezer fan would attempt to turn but only for a moment.
The Frigidaire FFTRQM is an apartment sized refrigerator that stopped working after about 4 years. I checked everything - the compressor, relay, capacitor. The coils were clean with no signs of leakage so I ordered and installed a new main board, but it didn't solve the problem. One time after it was unplugged for about an hour I got the refrigerator to run normal, so I checked running amps and things looked good. On a whim I checked the freezer fan voltage and amps.
It TURNED OUT to be the freezer fan #ZWF-02-4 50240401000Q. It's a 12vdc fan with a 4w rating. The Main Board #5304498695 feeds power to the fan at 11.86vdc. I quickly checked the amperage and it turned out the fan was drawing 9.9 watts so I ordered a new fan on Ebay for $25.41 and installed it last week.
The new fan did the trick and runs at a low 0.9 watts. The refrigerator has been working perfectly ever since and fortunately I was able to return the main board for a full refund.