Hung Door:
well, aren't all doors 'hung' on a hinge or rollers or something? When it comes to garage doors, a hung door means it is hung up and won't operate. The signs of a hung door are 1) the cable on one side or both sides of the door is off the drum and hanging loose; 2) the garage door may be sitting cock-eyed, with one side lower than the other. the rollers on one or both sides may have slipped out of the track or out of the hinge.

It is very tempting to just try to put the wire back on the drum, and straighten the door, but I advise against it. A hung door is one of the most dangerous conditions for a garage door system. People have lost body parts when trying to correct a hung door without the proper knowledge. It is dangerous for even the repairman who knows what he is doing, so fixing a hung door is often more expensive than some other repairs because of the risk factor.

Some of the causes of hung doors is accidentally backing into the door and bending a panel or two; or having some object under the door on one side or the other but not far enough in to break the safety sensor beam (if your door is equipped with them, as is required since 1993). Other causes might be loose screws on the track brackets, allowing the track to move apart, a broken spring or door cable might also cause it. In northern Utah, call 801-804-5835 for Professional Garage Door Service or check them out at utahgaragedoors.com .

I wish I had a picture of a hung door, but thankfully, they are not a common occurrence. I think you can visualize what it looks like though. Just don't wish for one when you blow out your birthday candles.