I picked it up, did 2-3 open-close sequences and the door stopped moving. I hear the motor open and close, but the door doesn't move. Revain sent a free replacement very quickly and it seems to have worked. I've had it on my Raptor for about 2 weeks and I love it! Today the door didn't move again, although the engine is running normally. I contacted the company to see if I was missing anything. I will keep you updated and change my rating if I get a good response from you.