New problem on my SD, When the window is rolled down all the way it won't go back up. If the stop that presses agains the frame is loosened, then it will go again. Is there some relay somewhere that cuts the power to the motor after it get to the end of the window travel? With the motor out of the frame it will turn forever, there must be some mechanism the tell it to stop trying to turn after the window is fully up or down, is it built into the motor itself, like a circuit breaker that trips once the motor can't turn anymore that is having problems reseting itself?