The motor of the garage opener runs as it should when called for, but it does not move the door nor the chain that controls the door.
Even when the tension to open the door is put on maximum, the door will not move.
I would appreciate receiving advise, parts list and instructions, since I lost mine.
Sears Craftman 1/2 HP Part # 41A3625 K.O.C. MDC cert # K711
FCC ID HBWID3605