[rambler]

Sorry I missed this post till now.. congrats on selling the house,, if it happens again, and its a chain driver opening, look above the unit, usually there is a switch up there that is triggered when the door is opened and reverses the motor to lower it next time. usually looks like astandard toggle switch, mine did the same thing several times, till I adusted the chair and replaced some of the rollers. it would not move until I relased the tension, and flipped the switch manually.