Hi I just purchased a "reconditioned" craftsman 1/2 Chain driven GDO and after installing everything and testing it, the garage door opener is turning the chain the opposite way. Meaning, I have the door closed, and it only forces the door down. I get the motor to go the opposite way at all. The rails will bent and the motor will twist a little. I'm thinking there may be a short circuit somewhere but want to see if anyone else have experienced teh same issue. Thanks for everyones input!

Tony