Water puddles on the bottom inside of my freezer and freezes.

apparently its the way the maytag defrosts. I have had this issue since I bought it. FIrst of all, you dont have to go through the whole defrosting process with water on the floor and removing your freezer contents. Simply take a butter knife and from the front corner, slide it under the edge of the ice and the whole sheet can be slid out intact right under the freezer door. I think it had alot to dowith having the humidity switch on, because when it isn't like in the summer when the AC is running, the amount of ice is not that bad.

this sounds like your freezer is operating properly, except that the drainage of the water when going through the defrosting mode is not draining properly, pooling on the bottom of the freezer and then freezing. Check the drainage hose for the defrost in the lower pan. I would remove everything, place in ice chest, let the unit completely thaw out and then inspect. I hope this is beneficial.

Your drain line is clogged, that is located behind the white wall inside of the freezer. The water comes from defrost cycle, that happens every 8-12 hours. You need to defrost it and snake it.
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Your drain line is frozen. Ice thawed by the heater in the freezer normally drains down a tube into a pan on top of the compressor, where it evaporates from compressor heat. If the drain freezes the water runs into the freezer bottom instead of the tube then into your fridge. To solve this remove everything from your freezer and remove the access panel in the back or bottom depending on your model of fridge. Turn off or unplug the appliance. Upon removing the panel(s). you will likely see that the bottom of the freezer is full of ice. Use a hair dryer or heat gun to thaw ice and remove. In the very back bottom you will uncover the drainhole. I usually use very hot water and a shop vac to thaw the drain hole. When you finally clear it you will hear water running into the pan on top of the compressor. Somethimes it takes a lot of hot water to clear the drain. Hope this helps!

Yes the drain is clogged and the water that supouse to go through became ice so it make it worse.Put hot water in the drain hole until it runs through,it'll go to an evaporative pan on top of the compresor to keep it warm and vaporize the water.

Tool needed: Screw drive with the insert tips can be used to remove screws use the end of the screw driver with out a philips bit or flat tip inserted. Remove frozen food to camping coolers igloo ice chests or coleman ice chests or a freezer in your home . Remove all racks and baskets to expose movable panels at the inside back of the freezer compartment.
Notice the 1/4" hex nuts remove the screws holding the panels at the back wall. Clear built up ice carefully. You now can take out the panels and expose the fan and cooling cool that creates the cold temperature on the freezer side.

Near the bottom is an aluminum U shaped pan with a shallow funnel indentation at the bottom. Clear ice from the funnel pan and inside bottom carefully. Sharp objects break ice nicely and can pierce the interior surfaces . Look under the cooling coil and at the back wall is a screw holding this soft metal catch pan in place. Remove the screw and carefully tip and slid out the catch pan tray. You now have access to the drain hole that is frozen closed or clogged. Place a large towel in the bottom of the freezer area to catch water. Pour hot tap water a half cup at a time into the drain area. Do not use boiling water the plastic inside a refrigerator or freezer can not tolerate high temperature. I have melted a freezer compartment in a GE with a hair dryer. Remove the water with a clean reag and add more warm or hot water repeat until the drain allows water to flow. stop adding water or the evaporation pan under the refrigerator will over flow.
Check the refrigerator about once a year for the freezeup problem or keep an eye on the bottom of the freezer looking for the build up of water frozen on the inside floor. The other solution get a new refrigerator.

the drain in the back of the freezer is probably full of ice. you need to pull out panel and use heat from a blow dryer to unplug the drain. then take a small gauge copper wire long enough to extend into the drain a couple of inches and loop it around the black heating element then when it goes yhrough defrost it should keep this from reaccuring

take back panel off inside freezer. you will see a drain tray at the bottom with a drain hole in the middle. this is blocked with ice. melt off ice with a hairdryer and follow up with hot water till it flows away freely.
also check the drain tray heater is ok

A bad freezer door seal causes condensation that freezes at the bottom of the unit. I realize you said the drip pan was full of ice, but if the drain is clogged, that will happen. If that unit has the pan at the very bottom, condensation can also contribute to this.

Unforturnately, I have the same problem. You have to take the bottom panel of you freezer off. You will have ice built up. You will have to remove the ice. In the back, there is a hole that drains to the drip pan, that has become frozen solid. I have this problem about every 30 days. I wish I knew how to fix the problem. My dad has the same refigerator freezer, it's a problem for him too.