Open freezer door, remove bottom drawer and look above the drain hole, higher, perhaps on the back wall of the freezer interior. There may be a gromet of sorts that has electrical wires that pass through. There should be a type of putty that seals the free-space around the wires up to the walls of the gromet. Make sure the putty seal is intack and that water running down during the thaw cycle doesn't find it's way through the gromet and ultimately on the floor under your fridge.
terbenster@gmail.com, June 2008