The defrost pan was moldy so we ordered that first thinking there might be a crack, since it's bolted in, and the part was inexpensive and had mold in our current pan so we decided to replace it no matter what. Once we got the pan replaced, we could see the leak was coming from a connector and line in the back so we shut off the water to the ice maker, and ordered a connector and line and that will fix it all. We read on your site that it could be a connector or line, we just didn't want to pull the fridge out until we were ready to do it all at once. The parts are so inexpensive, that replacing a few extra parts for us was worth it. we want new parts and new connections and pans to keep it running smoothly.