Refrigerator side not cooling properly. Back freezer wall iced up. Water leaking on front freezer side corner.

Refrigerator side not cooling properly. back freezer wall iced up. water leaking on front freezer side corner.

You have a self defrost component failure. Without a meter to test the components you will end up replacing all 3 parts. The heater, bi-metal (defrost termination control), and the timer are the 3 components that need to be tested or replaced. When I ran refrigerator service I used to replace all 3 parts at the same time. It cost a bit more BUT I never had to go back on the job for a failure to defrost like you are experiencing now. The air cannot blow over to the refrigerator side of the unit because the coils are frozen in the freezer side.

Here are the manuals: https://dl.dropbox.com/u/8010163/May...rigerators.zip
Obviously, the defrost system has failed. You can remove the cover to the freezer coils after thawing it out thoroughly. The defrost heater is at the bottom of the coils and the defrost terminator is wired in series to the heater and clipped to the top side of the coils. If you can see the heater burned in two replace both the terminator and the heater. You can tell if the defrost timer is bad by turning it until it clicks and the compressor and freezer fan go off. If it does not come back on in 15-20 minutes, it's bad. You can test the heater with an ohm meter. The parts are cheap, but if the heater is not bad I would not replace it. Save it for when it does go out.