My kenmore has never worked super well. It symptoms are freezer freezes ice but ice cream is never hard. Refridge is cold most of the time till it gets over 95. great winter fridge. I've used your flow chart coils are clean and everything else seems to be in order. I did notice something last summer. shelves in fridge looked bent, turns out all of back wall inside was full of water. drained water out and left off for a day. It seem to be working ok again but summer is here and problem back.starting to put milk and stuff I like to be fully frozen in back fridge( garage sale unit that works great).
I am wondering if defrost cycle is to long, sometimes ice is super solid and other times it is melting. Freezer temps down to -10, fridge about 36