If you do not see a solid illumination or your garage door is not working the problem is most likely due to the sensors being out of line.
One garage door sensor is green the other is red.
The garage door sensor yellow light and the green light together create a solid illumination.
For people who do not know the transmitter has the yellow light and the receiving sensor has the green light.
If you find the lights turned off in one or both the sensors it indicates that there is a problem in power supply.
I ll do all i can to help.
If just the red source led is out unplug the mechanism check the wiring and plug it back in.
One will have a green light used to show that the units are powered up and the other will have a red light to show that there s no obstruction between the sensors and that they re seeing each other.
Look for small led lights on the sensors.
If both the red source and green sensor lights are on and not blinking then the door mechanism is working properly.
I put a new battery in the remote too.
There usually is a light on each sensor.
Fixing garage door sensors on an automatic garage door opener.
My genie garage door won t open.
I moved the red one and the red light stopped blinking but the door still won t open.
The sensors are little black boxes about the size of a deck of cards that can be found on either side of the bottom of the garage door.
Did pull screw level to see if that was an issue re engaged lever not sure if did it up or down and still same problem.
Genie garage door opener with the red green light for detecting something in way of door closing.
And when they re blinking they re flashing a warning to the homeowner that something needs to be corrected.
How long have you been dealing with this.
With a security system that s tied to the garage door sensors other issues throughout the system could also cause a problem.
That there are no obstructions.
A red sensor indicates a problem red sensor lights are an issue because they should generally be green.
Door starts down abruptly stops goes back up.
Replaced the door sensors and alignment appears to be fine as both green red lights are constant.
One sensor is red and one is green.
One will have a green light that signifies power to the units and the other will have a red light that signifies that the sensors are seeing each other i e.
If they re turned on in both the sensors then there is no issue with the power supply.
If one or both of the lights are off check the fuses breakers and plugs for problems.
Raise the garage door using the control button on the garage wall or the remote control unit from a vehicle.
This video is not intended to fix all of the problems with the garage door sensors just to d.
Inspect each sensor to make sure the green or red power indicator lights are.