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If the garage door opener has a keypad, change the code by erasing the old one from its memory and entering a new one into the pad. For garage door openers without keypads, change the code by changing the switches inside the remote and setting the ones on the opener uni...


The internal settings on garage door openers are connected to the garage door receiver, and once they are connected to one another, the remote uses a rolling code to connect to the receiver. The remote changes the connection code after each use so that the code cannot b...


Installing a garage door opener is a two-person job that requires removing the old opener, mounting and aligning the new unit and securing the motor. Read all instructions on the new unit before beginning installation.


Common problems with garage door openers include problems with the remote control, out-of-adjustment limit switches and problems with the close-force adjustment. Many of these problems are within the ability of the homeowner to fix.


Automatic garages use an electrical motor to open and close the door. Because garage doors are so heavy, this motors connects to a cable and pulley system and a large torsion spring to convert the fast motor rotation into a slow and smooth pulling action.


Garage doors typically range from 9 feet to 20 feet wide and 7 feet to 8 feet tall. Popular widths for one-car garage doors are 8 feet, 9 feet or 10 feet, while those for two-car garage doors are 12 feet, 14 feet or 16 feet.


Lowe's sells garage door openers from many popular brands, including SOMMER, Genie and Chamberlain, in price ranges from $100 to $400, as of June 2015. Models with varying horsepower ratings are available, including 1/2 and 3/4 horsepower motors for rugged durability.