Jim, Check the circuit breaker. They oxidize from the inside out. I also have a circuit breaker on my power windows and they cut out on me on the way to a show. I Pulled the breaker and cracked it open and it was literally filled with rusty dust. There was just enough of the breaker left to get the windows up and down a last time before it totally pooped out. Put in a new breaker and now the windows roll up and down nearly twice as fast!! LFTSSF!!