I called Sears garage door customer service number due to the same issue. The test is to disengage the opener drive by pulling the emergency disengage handle, then open the door half way manually and then let it go. If it stays there it is a door/track/lub problem; if it drops down and closes its a garage door opener problem. Mine stayed open half way during this test so it was a door/track/lub problem. After using silicone spray on all tracks, rollers, and springs mine has been working great. Good luck.........