Window motors not working are common.
Usually it is NOT a bad motor.
Here are some things to consider:
-sometimes the rubber along the base of the window will hang up the window's movement and cause a overload breaker to trip
-the breaker is self resetting and will reset when things cool off so sometimes just waiting a while will fix
-slamming the door a couple times can correct the situation
-as a last resort pull the door panel and tap on the motor with a long handled screwdriver
-use a multitester to determine if the switch and motor are getting power
Hope this helps, first thing I would try is slamming the door a couple times and waiting a while...