Is the bottom shelf of your fridge soaking? Is water even leaking past the door seal, wetting the floor underneath? Do you live in an overdeveloped flood plain?
If your answer is "Yes!" to the first two questions, help is at hand; this is the post for you. This fix takes 10 minutes to do and no real tools are needed. Don't sue me if you follow this advice and your house implodes, &c. &c. I just took some photos as I went along, and hope they'll be helpful for the next person with this issue.
Here's the problem below: no matter how much mopping up, 20 minutes later the bottom of the fridge was sopping wet. The paper towels circled were saturated.
I unplugged the fridge and turned it around, figuring the condensation tank must be too full up or something. Just the opposite! The condensation tank, circled in green, was totally empty, while the inside of the fridge was full of water. The photo below shows how the condensation tank (on my model) slides toward you off a catch to separate from the rest of the refrigerator.
With the condensation tank removed, it was easier to see what was going on; this manky area looked the likely culprit. Something must have gummed up between the food cabinet area and the tank.
Directly above the manky area is the drain hole in the food cabinet, circled in the photo below. It must have gotten blocked up somehow.
I didn't feel comfortable pushing anything sharp down there, so wrapped up a chopstick in a paper towel...
... and used it as a pipe cleaner.
A surprising amount of gunk came out, given that the inside of the fridge was clean. Gunk circled in green, condensation tank clip circled in red.
I gave the tank a quick clean seeing as it was out...
... and clipped it back into place over the compressor.
And that's that, no more water leaking out of the fridge. Virtue is its own reward, but lemon meringue tastes much better :-)
Thanks for reading!