The garage door is a complex system that is programmed to travel a certain distance before it closes. If it closes before reaching that distance, it will sense something is wrong and will automatically reopen to prevent any damage. Changes in weather conditions can cause the components of the garage door to move or contract, which can cause the door to close and then reopen. When you press the button to close the garage door, it will go down partially, reverse direction, and then go back up again.
This is usually caused by a dirty or clogged safety device. At the bottom of the door, there is a small infrared sensor. If something breaks the beam for a fraction of a second, the door will reverse direction. This is to prevent any pets, children, or adults from being crushed by the door.
To fix this problem, you can remove any blockages or clean the eye. If your garage door is making loud noises, like metal-to-metal contact, or if it twists when going up or down, it may need to be have Garage Door Replacement. If your garage door opens and closes but you don't know how to diagnose the problem, you may not want to spend time fixing it. If the door still reverses direction after cleaning the eye, there may be an object on the floor that the door comes into contact with before it closes completely.
To fix this problem, stand in a place where your shadow blocks sunlight from the lens and then close the door with your remote control.
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