I just set my automatic door up last weekend, but just added at timer yesterday afternoon. I bought an add-a-motor which looks just like your motor, but is for drapery. I had to have a counter-weight on the other side of the rubber wheel inside. Is there one on yours? Well, last night I got home late and I was glad to see that the door had gone down by itself. (I have an enclosed run around the coop so I'm not as worried about predators getting in as cold WI air). This morning I was dismayed to see that the door hadn't gone up. When I checked on it, the counter weight had gotten caught somehow and must've burnt out my motor. Such a sad thing. It was so fun to watch work. When it worked. I'll have to scope out a new motor and try again. Looks like you got a great deal on that set up.