Refrigerator clicking sound - GE Monogram ZICS360NXBRH

[goat4339]

Hi my Bottom Freezer GE Monogram ZICS360NXBRH is making a clicking noise. My wife left the freezer portion but only for an hour or so. The noise is coming from what seems to be around the middle part between the top fridge and bottom freezer.

At first the fridge was having trouble cooling but the freezer worked. The coils that I could see looked frosted over so I tried unplugging the unit for close to a day to melt all the ice. This actually fixed the cooling of the fridge but the sound still pertains. 

Other notes:
-The noise seems to be coming from the middle area where the freezer and fridge connect
-the noise stops when the freezer is opened
-The clicking or knocking is series of about 10 knocks in roughly the same pattern that occurs every 5 seconds. Sounds like a woodpecker in there that needs a breather every few seconds
-Fridge is a massive build-in and I'm not sure how/if I can pull it out. I'm into it if it's doable with 1 person, I can try raising the wheels if necessary. Willing to try a lot
-Not sure if it matters but the Ice machine doesn't work since we moved in
-We're in a travel quarantine and can't have a serviceman come in for 5 more days 

I'll Venmo you a couple bucks if it directly leads to the repair!