When was the last time you tested your garage door? Have you ever given it a safety check? There are three things to do to ensure that it works properly. First, test the balance and spring tension. Pull the release handle to disengage the opener, then hand-roll the door up and down. It should operate smoothly and stay in place wherever you leave it. This means it's properly balanced. After re-engaging the drive, test the two auto-reverse features. First place a roll of paper towels under the door and close it. The door should reverse quickly when it hits the towels. Then test the light beam safety sensors located near the floor on the side rails. Place a cardboard box under the open door so it that it interrupts the sensor's light beam. Then close the door. It should reverse immediately. If the door passes these tests, you're good to go. If it's a "no" for any one, call in a door pro to diagnose and repair the problem. For more tips, visit our Web site at Onthehouse.com.