Magic Chef 4.4 Reefer w/2hr Cycle

I have a Magic Chef Minifridge that has a personality unlike anything I’ve been able to find searching these forums:

It works perfectly for about 2 hours, then goes warm for about 2 hours, then cools off for a couple of hours, then, so-on and so-on.

I sold this in good faith to someone because every time i checked it, it must have been within the cool-2-hour timeframe. I need to get this right and at the least amount of expense as possible.

Thanks in advance!