STEP 3: Would your Door reverse up if someone was under it?
Test your door’s sensitivity. A correctly installed garage door opener will automatically retract after making contact with an object. This is the primary safety device installed in U.S- manufactured
garage door openers. As a homeowner, you want both safety systems (primary and secondary -photo eyes) to be performing perfectly. Lay an object that is at least 1.5 inches in height flat on the ground in the door’s path and press the close button. Household objects this size might be a bar of soap, stack of index cards, or a hardcover book. The door should reverse off this object. If it makes contact and does not reverse, the door is not operating correctly.
Make a habit of performing these safety checks whenever
you test your smoke alarm and carbon monoxide detector, and keep your garage,
home and family safe.