It sounds like there is an issue with the defrost water properly draining out of the freezer. If the machine isn't properly leveled the water will leak into the fridge through the air divider. Maybe not all the water, but maybe some of it. This sounds like too much water for there to be a door adjustment issue or a door gasket issue.
I believe that if you ensure that the machine is level, this problem may go away. A way to check this is, open the fridge door, about half way, now let go of it. The door should start to swing closed. If the door swings further open then this is your issue. If the door stays where you left go of it, then it is still possible that this is your issue.
I see this enough to be sure of what i'm telling you. Unlevel fridges. There is only a small hole for the water to drain through. If the machine is tilted any other way other than back slightly, the defrost water will leak and sometimes it will build up a layer of ice in the bottome of the freezer section.
On this model there is a space under the "floor" of the freezer section, so the ice may not be visible until you remove the bottom cover inside the freezer.
Let me know if you have anymore questions about this.
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