How do Portable ice makers work?

Portable ice makers work like any traditional freeze ice maker. Water is pumped into the rotating ice tray. The compressor and fan then freeze the water into ice. Then a warm refrigerant causes the ice to be released into the bin.

A portable ice maker uses water provided by a person. The water travels to a cooling area in the machine where it is poured into trays. The machine uses freon to maintain cold and several hours later, the ice is ready. A more detailed description is available at http://home.howstuffworks.com/icemaker.htm