I have a KitchenAid refrigerator model KSSS42MDX05, a built-in side by side, that is leaking from the bottom (not from the defrost pan) but rather from the metal lip in the front where the water is collecting and then leaking onto the floor. There is a plastic tube that sits in the lip, but it is not leaking. The ice maker seems to function okay and stops producing ice when the bar is lifted up straight. Any suggestions?