For people who do not know the transmitter has the yellow light and the receiving sensor has the green light.
Garage door eye beam yellow.
Y ou should try adjusting the down force on the back of the opener.
The garage door sensor yellow light and the green light together create a solid illumination.
If your garage door has been in place long enough enough dirt may have formed on the lenses to block the beam or cobwebs might be in the way.
I have a green light on one and yellow on the other liftmaster professional garage door opener.
The sensor on one side of my garage door remains yellow thereby keeping my garage door from closing.
The eye s are not the issue.
Sensor path make sure nothing is obstructing the sensor beam.
Even a spider building a thick web near a sensor can cause that sensor to read that something is in the way.
Garage door sensors utilize infrared beam of light to detect the presence of objects a similar technology to that found in remote controls and burglar alarm systems.
Among the easiest issues to solve are objects blocking the sensor beam because garage door sensors rely on infrared technology to see if something is in the way of the door s operational path that path needs to be unobstructed.
June 7 2020 at 5 56 pm.
In general garage door sensors block the door from closing if there is an object nearby.
Proper height for a garage door sensor is 4 to 6 inches 10 2 to 15 2 cm.
Lower is easy to stand above with a foot on either side.
If your garage door sensors are outside of this range remove them entirely from the garage door frame and install leveled inside the safe zone.
Higher than that can miss many low lying objects including pets.
When this happens the green light on the receiving.
Fixing an issue quickly is important.
When this beam is obstructed by an object of some sort you won t see a solid yellow light and the garage door will immediately quit working.