I had a similar leak. I took the outside access cover off and found a slow leak at the water solenoid valve. Just a little tightening, of the leaking water line connection and the leak was fixed. Also, with a bunch of paper towels, and being careful around the hot surfaces and electrical connections I soaked up any water laying around at the bottom surface including inside the storage drawer below the fridge.
Bob and Carol - Lees Summit, MO,
2016 Silverado 3500 HD, High Country DRW diesel, 3.73 gear ratio, long bed, 25K Reese Elite removable hitch with 2013 Redwood 36RL with 17.5" H-rated tires and MOR/ryde heavy duty shackle links and bushings; 6.5 KW gen