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