Doors without openers have no brace preventing warping and swelling at the top of the section.
Garage door bows when opening.
In other cases the weight of the garage door in conjunction with an automatic garage door that is attached to the center of the door may be the cause of bowing.
My only suggestion is the ensure that the door operates properly and easily without the gdo and then re connect the door.
In some cases basic exposure to the elements along with temperature fluctuations may result in bowing.
You might have absentmindedly unplugged the operator as you were exiting the garage through your internal door to the house.
Garage door struts are available at home improvement centers to fix your bowed garage door.
My gdo rail bows slightly when opening and closing as well.
There are several factors that may cause a garage door to bow in the center.
One of the best features of garage bow is that you are able to open and close your garage door by simply cutting the magnet along the breaks in your garage should only be 3 4 cuts.
Sometimes a garage door won t open or close for one reason only the operator has no power connection.