Model 363.9552780 kenmore fridge ice/water dispenser completely quit working. Is there a fuse somewhere to check? If not, where can I locate a wiring schematic to troubleshoot this unit. Thanks!

There is usually a wiring diagram on the unit. Sometimes it is in a little plastic bag somewhere on the back of the unit. It could be the water selonoid OR sometimes the water line freezes in the inside of the unit preventing water flow.