The drain tube is clogged. Self defrost fridge correct defrosted water drain down to a tray at the bottom of the fridge, if the tube is clogged water back flow to fridge inside and accumulating the bottom of your refrigerator then drip to floor. Pull out the fridge; at the back you will see a rubber tube connected to the middle and to the bottom. Clean the tube will fix the problem

Do the following
Things You'll Need:
· Stiff wire
· Warm, soapy water
Step 1
Unplug the refrigerator from the electricity source.
Step 2
Locate the drain hole, which is usually found at the bottom of the refrigerator.
Step 3
Remove the plugs from the drain tube at bottom of the refrigerator and freezer compartments.
Step 4
Insert the stiff wire into the drain tube to unclog the tube and remove any debris that has accumulated.
Step 5
Flush the drain with warm soapy water.
Step 6
Replace the drain tube plug.