You will need to remove the shelves and the icemaker and then remove the back panel. Once you have the panel removed look below the coils and you will probably see ice buildup. Use a hairdryer to remove this ice and reveal the drain. You will need to heat up water until boiling and put a cup of water on this hole until it drains out. This will clear the drain line and stop the leaking into the refrigerator part. Let me know if you have any other questions.