It works as follows.
Garage door safety feature not working.
If any object blocks the path of the infrared sensors the garage door opener will not activate or will reverse if operating.
If it detects an obstacle the door stops closing and automatically reverses to the open position.
The sensors use two photo eye lenses that transmit an infrared beam between them.
If your sensors or garage door motor is blinking or your door doesn t close it s a sign you could have faulty sensors.
The first feature is the obstruction sensor.
Safety sensors include two mounted sections one on each side of the garage door opening.
Important safety feature 2.
The auto reverse feature is one of the most crucial garage door opener safety features.
Luckily you can set most automatic garage doors to a manual mode to bypass the sensors.
Sensors are a critical safety feature but can prevent an automatic garage door from working properly.
An incorrectly adjusted garage door opener and sensor can cause damage to the garage door motor lift mechanism your house or worse a person or pet.
The garage door should not be used until the problem has been repaired.
For home safety reasons you will want to get this issue resolved quickly.
Sometimes the sensor becomes faulty and needs to be replaced.
Otherwise the garage door will not open or close remotely.
With the door open press the button to close the door and then use a stick to break the beam of light between the two sensors.
All garage door openers use a sensor light to prevent the door from closing when an object is in its path.
It is an electronic eye mounted about six inches off the ground on each side of the door.
A few minutes every six months or so will.
Until the sensor is working properly disconnect the unit and operate the garage door manually.
Unfortunately faulty garage door sensors typically need replacement.
Infrared sensors the second line of defense is a set of infrared sensors which should be mounted 4 to 6 above the floor on each side of the garage door frame.
If the sensors are not.
Picture of boy running toward closing garage door.