Ya. That black server fan in the frig is very common for the model of frig..also the little white resistance sensor on the coil tends to fall off of the tube sometimes causing it to defrost poorly. I like to swap them out when I'm doing the fan as a prophylactic.

The reason they use that fan is because it's super quiet and voltage can be regulated to it for different spin speeds which I turn is supposed to save energy.

The issue with the fan in and of itself is that it's inherently an aftermarket fan produced by an aftermarket manufacturer for GE. It's just junk.