Water at the bottom (inside) of my refrigerator. Why? How?

I have a Maytag Dual Cool (model MTB 2155 AR). No idea how old. It came with the house. Been working fine until a couple weeks ago.
The freezer is on top.
I open the door and look down and I can see that, under the veggie / fruit crispers there is water. It's spilling out from under the drawers. I take the two drawers out and under them, in a slightly indented section all along the bottom of the fridge obviously designed to catch spills, there is water.
THE WEIRD THING IS: the sides and back of the fridge down there are dry. That's what I can't figure out: where is this water coming from? If it was dripping down from above, wouldn't the sides or back also be wet? If this were outside, I'd say the water was welling UP from the ground. But, no, I don't see any holes in the spill catch area. It takes about 24 hours to replenish.
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Has it been especially humid where you live? And, does the unit have a hi-lo humidity switch?
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look at the upper back of the fridge , there may be a hole that drips from the top to the little drip pan . if drip pan has ice in it, remove it . some of the little drip pans have screws that hold them on.remove it and blow out the drain tube with compressed air..... on mine , if one of the light bulbs goes out,or the light bulb cover comes off the little drain tends to freeze. lucas
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in the bottom of the refrigerator. It usually goes down this hole to a catch pan at the bottom of the refrigerator and then evaporates.
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On Mon, 15 May 2006 22:27:52 GMT, "Ralph Mowery"

The drain hole may even be at the bottom/rear of the freezer compartment. If so, it connects to a tube that goes down the back of the refrigerator to the drip pan in the bottom.
The hole or tube is probably clogged. When it's clogged, water runs down the inside of the refrigerator during each defrost cycle. I've had luck with simply a long length of stranded wire that I've used to ream out/clean out the hole and drain tube.
Doug
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