Ice build-up in bottom of freezer section.

You have a side by side or a undermounted freezer? I am having the same problem with mine. Take a look into the bottom of the freezer, there is probably ice building up on the bottom of it under the bottom self or basket. It seems if the refrigerator door is opened frequently and it is moderately or very humid in your home the water vapour condences inside the freezer. There is probably a condensation tray somewhere that is overflowing into the freezer compartment. Once the ice build up on the bottom gets to a certain point the water then starts to run out the front of the fridge onto the floor. Remove the ice from the bottom of the fridge and empty the condensation tray. You may have to continually do this during humid periods. For me that is about 6 months of the year every 3 to 4 days. It's a pain but what are you going to do.

You need to clean the drain line from the freezer it is plugged resulting in a big ice build up at the bottom. Remove the shelves and back cover you will see where the water is suppossed to drain, you will need a hair drier to melt the ice build up because it has backed up and now is frozen too. After you remove the ice build up you can take a coat hanger and insert it into the opening, see if you can work the coat hanger down through the line to push out the obstruction, if not pull the fridge out and remove the bottom cover you will see where the line exits and drains into a tray it may be plugged right there. You may have to force out the obstruction with compressed air if none of the other things work or do what I did, blow into the tube from the bottom to force what ever is blocking the line out the top, doing that though is a little messy. Cat hair or dog furr is usually the problem.

Your inlet tube that goes to the icemaker may be frozen. To Check: Shut off water supply to Fridge, disconnect the water line that goes to the icemaker at top back. Use a flexible item to insert in the water line connection. I used a zip tie. If the flexible item won't all the through to the ice maker, the line is frozen. Thaw out the tube from inside the freezer with a hair dryer. Re-connect everything, you now have ice . . . Solution #2: You may have to replace your "Water Inlet Valve" located at bottom right rear of Fridge. Easy to do, just follow the color codes, be sure and shut off the water.

check the bottom of the bin for a drain spout. The drain line may be clogged allowing the water to build-up in the bottom.

If the water is coming down from the ice machine itself, you will need to open up the machine and look inside. Check to ensure the cube guides have not come out of place, that the sump is not overflowing with water, and that there are no loose, leaking, disconnected, or busted hoses.

Replace the water valve behind refrig , where the wall water line connects to on refrig .

The water supply line is leaking.Put some paper towels down after you clean up and check real often to back track where leak is coming from,maybe your ice maker is over flowing with water.When was the last time you replaced your water filter?Could be backing up,just replaced mine,it was leaking under the fridge,mine is a Sear's Kenmore,ordered a filter from Sear's,Cost me 50 buck's,My filter is at the bottom front,your's may be inside the freezer.

remove back panel inside freezer. you will see drain tray at bottom with a drain hole in the middle - this is blocked usually with ice. melt off with a hairdryer and follow up with hot water till water flows away freely

unplug it again , sounds like your drain line has frozen, instaead of defrost water going down the tube and under refrig in drain pan, becuse tube is frozen its draining into freezer compartment and eventually spilling out through front of unit. totally defrost unit and behind back wall of freezer youll see a metal trough designed to catch water, in the center (under the ice is gonna be the drain hole, pour boiling water down until it runs freely

The drain under the evaporator is frozen/plugged.  You can take the back panel inside the freezer off and run hot water down it to thaw it out completely and this will solve your problem.

I had the same problem with my LRFC25750 and have finally figured out what's happening! The water that is pooling and freezing on the bottom of the freezer is definitely coming from the defrost cycle. It is pooling inside the freezer compartment because the drain inside the back of the freezer intended to carry the defrost water down to the external evaporator tray underneath is blocked with ice. As a result, the defrost water from the coils overflows the collector under the coils and runs down the inside back of the freezer, pools on the bottom, and re-freezes when the cycle is over. this continues until there's so much ice on the bottom that the water from next defrost cycle runs out on the floor. The "easy" solution is to unplug the unit and let it completely melt out (this could take 24-36 hours). I couldn't wait, so I removed the freezer drawers and their tracks and pulled out the back panel inside the freezer -- saw the ice in the collector and blocking the drain and I melted it away with hot water and verified that water could now flow down to the external evaporator tray. Unless you want to do this, I'd say give it a good 24-36 hours for all the ice to melt away. I think it all started when we left the freezer door ajar for a whole day and probably had a lot of frost build-up on the coils. The next defrost cycle was not enough to clear all the frost and things began to build up from there. Once the drain is frozen, though, you're finished -- the defrost heater doesn;t reach down that far and you have to melt it down completely or it will continue to leak forever. I've heard that you can get a drain heater to ensure that the drain never freezes over or at least so that it is sure to clear with each defrost cycle. I'll post an update if I locate one.