Originally Posted by thargrav
More than likely you have crimped the tube somewhere or cracked the tube somewhere. Check again today & if it cools even less or not at all then you cracked the tube and you've just created a piece of roadside lawn art.
UPDATE: I took another look and noted that one part of the freezer compartment looked like it might be crimped. I carefully bent it out and instantly heard coolant rushing through the freezer line! It's been running for an hour or so and it's already starting to frost over and cool down considerably. Problem fixed (hopefully)! It may never hold the cooling capacity it once had if the coolant lines are distorted slightly, but I hope I'll be able to get it down to at least 40F.
The part that was bent too much is the part toward the back of the fridge where the freezer unit bends by design to attach to the back wall of the fridge unit. I had bent this even further during my initial operation. It looks like this is a good fridge to use for kegs, but you have to be very careful when bending back the freezer compartment.
On a side note, before I bent the freezer back I noticed that the compressor was indeed running along albeit very quietly, so I should have known the compressor was not the problem.
Sorry for taking over the thread for this problem, I hope it wasn't too much of a tangent to the OP's first post.
Thanks for the help!