Craftsman garage door problems
So, i just replaced the gears and the sprocket in my garage door opener. However, when I run the motor it spins one direction for about 1 second, then switches and runs the opposite direction for 1 second and stops then the light blinks. This happens regardless of whether the garage door is attatched and regardless of any of the up/down force/travel adjustments I make. Can anyone help me with this problem?