Unit seems too have lost power inside of unit .

What do you mean by "unit seems too have lost power inside of unit." do you know there is power anywhere? Have you checked the breaker (turned off and then reset?) or fuse if you have a fuse box?

Have power too selector switch. Door switch has continuity threw it. And door light does not come on when door is open .

Rick, post the entire model number and I'll see what I can come up with. Is it gas or electric?