How Does A Garage Door Safety Sensor Work

Sensors are a critical safety feature but can prevent an automatic garage door from working properly.

How does a garage door safety sensor work.

The sensors are located above the floor at each side of the door opening and. The infra red sensors that facilitate your garage door opening system are placed on either side of your garage door doors and they stand approximately six inches off of the ground. When the device detects any person or object in the path of a closing garage door it signals the motor to stop the downward action and switch the motion into reverse to stop the obstacle being crushed. If your sensors or garage door motor is blinking or your door doesn t close it s a sign you could have faulty sensors.

Garage door sensors are purposed to prevent injury to you your pets or your loved ones. Safety sensors were invented as a result of accidents happening with automatic doors coming down on top of people cars and animals. The sensors are normally about 4 inches above the ground. This system allows them to detect obstructions like your car or a kid on a bike.

In fact these safety sensors have been required by law since 1993. As long as the beam isn t interrupted the door will open or close normally. The same mechanism kicks in when other objects are placed near the door too. What do garage door safety sensors do.

They are part of the automatic garage door system. In general garage door sensors block the door from closing if there is an object nearby. They notify your garage door system of any potential obstruction that would disrupt the downward trajectory of the garage door. Safety sensors are designed to prevent accidents caused by automatic garage doors which have led to serious damage to cars and injuries and deaths to people and animals.

The infrared beam from the garage door opener sensors isn t able to be seen by human eyes. Garage door sensors work by shooting a beam of infrared light across the entrance of your garage to the sensor on the other side. Garage door sensors are safety devices that prevent the door from closing on people pets or objects in the doorway. A garage door that refuses to close even when the path is clear or a door that starts and stops randomly may indicate a malfunction with the safety sensor.

The units are placed near the ground on either side of the garage door. Your garage door sensors perform a vital function. Garage door sensors prevent the garage door from closing if there s something in the way. In turn the electric motor engages a track and pulley system which then opens or closes your garage door.

They can also prevent damage to the garage door and the garage system itself. This precaution ensures that the door doesn t close when your car is in the doorway. Garage door sensors utilize a photo eye sensor and a beam of infrared light that goes between the two units.