Weve had a Monogram ZFSB23 side-by-side Refer since Aug 2004
Weve been hearing a howling sound intermittantly for the last 4 years but finally its starting to howl more consistantly even though it comes and goes with what we suspect is the control circuitry telling it to do so.

So we just ordered the evaporator fan (which from what I read seems like the most likely culprit).
Can someone assist me in getting to this fan so I can replace it.

I assume it's in the back of the Freezer section near the ice maker, since thats were the howling seem to be coming from.
My only concern is that I dont see any screws holding this thing together.

Is it just a bunch of squeze and tweak metal/plastic panels which I need to manuver around?

thank you