Hi Brandy,
As for your fans, the fans in the back of the unit, (bottom back of the unit, not inside) is called a condenser fan motor this only cools the compressor for the fridge. This fan only runs when the compressor is running. The other fan is in the freezer section and is a variable speed fans motor, this can do two different things with only one job. The fan itself can ramp up and down in speed to control air flow and temperature demand in the two sections. This can run a lot but should slow down when temperature is met or while in a defrost mode. So to sum up this answer, it is common to hear fans run in the newer unit over the older units. Believe it or not do save energy with just moving air over running the compressor all the time.
I hope this helps.
I’m happy to help further over the phone at
https://www.6ya.com/expert/gere_bf68e6055dd61249
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