I know it's the drain clip. I identified it incorrectly. It replaced the original one which was too short and never properly cleared the ice in the drain. (again, that's part of the design flaw (and there are many) in these refrigerators). I'm pretty sure it's working well now, and since I moved the temp sensor (as per the image) I've not had the issue with water pooling in the crispers or under them...at least not that I recall.
My latest issue, which I thought was a fan blocked by ice, due to the sound, was actually something else that probably few people actually have trouble with. My refrigerator came with an icemaker, but for reasons such as location, added electricity cost, and the fallibility of the things, I never used it. A few weeks ago, the refrigerator made a sound like a blocked fan, then a sound like a solenoid closing, and then a "ding-dong." I couldn't find anything online.
So, in a totally unrelated move, I decided to remove the icemaker. It only ever took up space, etc. Once I put the covers back on and the freezer door, I plugged it in again, but I got a blank readout on my front door LED panel. The only thing different was the removal of the ice maker pieces from inside the freezer compartment, and only one part of that, the motor that "dumps" the ice tray, had an electrical component, so I plugged that back in and the readout returned to normal. I figured I had to leave it in, so I taped it up to the ceiling of the freezer compartment with cold weather metal tape. About 3 hours later the noise started again and I thought, "Damnit! The things freezing up again." But I got lucky as I was in the freezer compartment the next time it made the noise and I realized it was the motor for the ice maker.
There's a button on the panel to turn the icemaker on and off. I turned it off, but the damn thing kept making the noise. So I decided to remove it and see if the LED panel reacted negatively to its absence. It did not.
Please tell anyone else (the few manual ice-makers present in this world, I imagine) that if they are having this problem, that's the reason.