PREDIKSIBOCORAN The typical garage door opener consists of a reversible motor that drives a carriage along a rail above the door. Now you'll be able to make basics garage-door repairs, whether it's to the door itself or the opener. In most cases when the door doesn't work easily, repairs are fairly simple. According to HomeAdvisor, the average cost for garage door repair in the U.S. Step 2: Raise and lower the door, observing the top point of its travel.|RKD - Nederlands Instituut Voor Kunstgeschiedenis