Front of the sensor.
One garage door sensor light is yellow.
You ll need to first equip yourself with a wrench of some sort and a tape measure.
A simple fix would be to block out the sun by fixing a piece of cardboard in.
If you own a garage door opener by lift master chamberlain or craftsman you ll notice that the sender sensor will usually shine a yellow light and the receiver sensor will usually shine a green light.
If the sun shines on the sensors it may hit it in such a way as to block the light.
Door will close to about 1 foot remaining and then reverse as liftmaster sending sensor is yellow and receiver light is green.
If you see that the sender sensor is not yellow and the receiver sensor is not green then this means that your sensors are probably off.
Garage door sensor light is yellow not letting door shut.
Another possible problem could be the sun.
What color should the lights be on garage door sensors.
The garage door sensor yellow light and the green light together create a solid illumination.
If you find the lights turned off in one or both the sensors it indicates that there is a problem in power supply.
If they re turned on in both the sensors then there is no issue with the power supply.
So how do you fix this issue.
When depressing the garage door opener the door starts to.
A common cause of a malfunctioning garage door sensor is lack of power supply.
Look for small led lights on the sensors.
I reprogrammed my genie opener after that was done the door i reprogrammed my genie opener after that was done the door will only go down by holding the wall button down until the door is completely down.