It is on the unit in the garage. On the back where the distance adjust screws are. Basically in the middle of the back panel. It is a red square button.
Craftsman Garage Door Opener 139.53924 Inner Trolly broke It looks like the inner trolly broke in half, can this be replaced or does the whole rail need repla…
Craftsman Garage Door Opener 139.53924 Inner Trolly broke It looks like the inner trolly broke in half, can this be replaced or does the whole rail need repla…