When I first removed the shelves to see where the water was leaking from, I didn't know that one of the shelves had a removable pan glass. As I removed its shelf, the glass fell out and of course it broke. I was able to locate the leak coming from a rusted drain trough assembly. I watched the video showing how to replace it on a GE refrigerator and saw that it was an easy repair. I ordered a new cover pan glass and drain trough assembly. They arrived in good time. The repair was quite easy, and now the problem is fixed and the glass is replaced. What I can't understand is why GE makes the drain assembly out of metal instead of plastic. Knowing the new one will eventually corrode over time, I ordered a second one to have on hand.