Drain line stopped u[p om defrost model..water

Unplug the power to the Fridge, take the items out of the freezer. There is a bottom tray that's inside the freezer that has 2 or 4 screws, remove the screws that holds the floor to the freezer and lift it out. You will probably see a sheet of ice on the bottom of the freezer. You may have to take off the back cover which is inside the freezer, it covers the evaporator. Then you will want to defrost the ice, do not use a heat gun it will melt the inside of the freezer. Best way to thaw it is leave the power off and melt it with hot water (not boiling). Either wet vac out the water as it melts or use a hand towel to mop it up. Sometimes a turkey baster will work to squeegee it out. There is a drain hole in the back that you will see as the ice begins to melt. That needs to be clear and the only way to clear it is to cover it with hot water. You will know that it clears and working when you see the water drain out thru the drain hole in the back of the inside of the freezer. By the way the drain drains thru a pipe thru a tray that's on top of your compressor. That's what heats it and makes it evaporate. Be advised that as you see that it is clearing, you can stop dumping water down there as some may get on the floor as the pan may overflow and dump water on the floor. If that happens, just mop up the water from the floor. Now put it back together again and plug it back in and you should have no further problems.