After a Memorial Day trip, we cleaned out the fridge and parked the coach. Left the fridge doors ajar to air out, shut everything down. Finally got around to plugging in the coach on Friday. Sunday night, my son tells me that there is water dripping from the coach (which he heard with his dog-like hearing from his bedroom, adjacent to the parking pad. Oh to have young ears!) Sure enough there is water dripping from some drain tube, just forward of the right rear tire. Scratching my head, I turn to go inside the coach and as I pass the exterior fridge vent, I hear a slight hum, which makes we start to wonder if I did, in fact, turn off the fridge. Get inside, open the freezer and low and behold the ice maker is caked in ice and the ice bucket is full of water and quickly melting ice cubes. Apparently I had turned the fridge off, but did not turn the ice maker off. This is what I learned: the ice maker apparently has its own cooling unit which will continue to work with the fridge off, provided it has AC current. Who knew? The one thing I can't figure out is where it was getting the water? The pump was off and there is no city water connection. And I'm not talking just a little water and a couple melting cubes. The tray was full. The bucket was full of water and ice, and the overflowing water was dripping out the overflow drain. Mystery, or simple explanation?