Amana ACO1840A Just Went Dead

My Amana Over the Range Microwave just went dead. (no power or lights) was working fine. I just put a cup of coffee in it to heat up for 1 minute and it ran for 5 seconds and just went dead. I checked the breaker and pluged a light into the outlet and it worked so I know the outlet still works. I unpluged the microwave for an hour and pluged it back in but still no signs of life. Please help – Any ideas.