Magic Chef MCWC44DZ bottom zone not cooling

Hi. I have a Magic Chef dual zone wine fridge that stopped cooling. I replaced the relay switch and overload protector and it started back working properly. After about 6 months I noticed the bottom zone (which is larger and has more product) wasn’t cooling like normal. I unplugged it then plugged back in after a few hours and it seemed to be fine for a week or so. I did this cycle of unplugging and it working for a week a few times before eventually both zones stopped cooling. I had an extra relay switch from the previous repair, so I went ahead and replaced it. The old one had the “death rattle” when I shook it, so I do believe it was bad. Immediately both zones started to cool, however the bottom zone is still lagging behind the top zone and hasn’t reached the set temperature. The fan is working, coils are clean and the compressor is running (although it is very hot to the touch - not sure if it should be). What else should I check?