Liftmaster sending sensor is yellow and receiver light is.
One garage door sensor light is yellow and the other is green.
The garage door sensor yellow light and the green light together create a solid illumination.
Since the lack of power supply is a common problem check the wires around the sensor when the led lights are not flashing.
They are supposed to be that way.
Does it operate from the wall station and not the remotes.
Noticed one door sensor light is yellow and the other green.
Also i have to hold the button on the wall down to close it read more.
One of my garage door sensors is solid yellow and the other green.
If they are properly aligned both sensors display a steady light.
Before we get on the opener unhook it from the door.
Run it up and down by hand to see if it runs well and is well balanced.
My garage door opener will not go up or down.
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.
If not fix this first.
If so how do i correct it.
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.
So how do you fix this issue.
Make sure the door is hooked up to the opener.
I can open the garage door with my remote but not close it.
If so re hook it back up.
You ll need to first equip yourself with a wrench of some sort and a tape measure.
The one on the receiving sensor is green and the one on the sending sensor is orange.
Each sensor will usually have a light.
When depressing the garage door opener the door starts to.
Could this be part of the problem.
That can sometimes be cleared by disconnecting and reconnecting the power and then restarting the system.
Many times the malfunction can be due to a loose connection or broken wire.
Door will close to about 1 foot remaining and then reverse as liftmaster sending sensor is yellow and receiver light is green.
If that doesn t do the trick one of the sensors may have detected a fault in the system.
If something is in the path of the beam or.
A good way to check for power connection is to check if other parts of the garage are getting power.