I have an old Kelvinator brand fridge, model 00-13518-3.
The freezer leaks water regularly into the a small "drip cup" at the top of the fridge (pictured below). It drips often enough that the water doesn't have enough time to evaporate away (which I am assuming is supposed to happen), so it overflows and fills the bottom of the fridge with water.
I've done some research and a likely culprit for this problem is a blocked drain hole - the problem, is I can't find it. The freezer itself has no hole anywhere. The only other logical place I can imagine the drain hole being is behind the drip cup. Unfortunately, it's positioned in such a way that I would have to break it to see what's behind it.
Would the drain hole be behind the drip cup?:
And a question on the side: where exactly is the water leaving the freezer from towards the drip cup if I don't see any holes in the freezer?