How do I adjust the sensitivity of a garage door opener?

expert EXPERT April 26, 2007

The life expectancy of a garage door opener is 8 to 12 years. Therefore, the unit is likely approaching the end of its useful life. Modern openers have more safety features. Openers manufactured since 1993 come with an electric eye, which is mounted four to six inches above the garage floor. If the beam of light is broken, the door automatically reverses. Nonetheless, your existing garage door opener has a sensitivity control to adjust the auto reverse feature. Before attempting to adjust it, first make sure the door is balanced and travels freely. With the door open, disconnect the drive mechanism from the door by pulling the emergency release cord, dangling from the center of the top of the door. Close and open the door manually to ensure that it moves easily. It should not take much force.

Next, ensure the door is balanced properly by pulling the door halfway down and letting go. It should not go up or fall down. Push the door up and reconnect the door to the opener. Place a full roll of paper towels on the floor, in the middle of the door opening, and press the button to make the door close. The door should compress the roll of paper towels and then automatically reverse. If it does not, open the door and adjust the sensitivity of the opener. Try it again. If you can't get the door to auto reverse, call a specialist. For Stanley garage door opener manuals, call Stanley during business hours at 800-849-3998 (818-725-7125 International) with the model number of your unit.