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.
No sensor lights garage door.
Safety sensors include two mounted sections one on each side of the garage door opening.
Light doesn t activate on garage door opener when you cross safety sensor beam chamberlain group products which include the liftmaster chamberlain sears craftsman line of garage door openers have a feature where the opener light will turn on if you cross the safety sensor beam shooting across the opening of your garage door.
Have no power to sensors neither sensor lights are on.
On line manual does not specify colors.
It sounds like you have a broken wire to the sensor with the green led.
Have adjusted several times.
If they re turned on in both the sensors then there is no issue with the power supply.
If the sensors are not.
One wire from each sensor goes to terminal 2 and one wire to terminal 3.
A common cause of a malfunctioning garage door sensor is lack of power supply.
For people who do not know the transmitter has the yellow light and the receiving sensor has the green light.
The lock button on the door control in on.
Depending on the brand of garage door you have one of the sensor lights may flash dim or go out completely when the beam is interrupted.
First check the sensor lights.
Check if the safety reversing sensors are aligned.
Inspect each sensor to make sure the green or red power indicator lights are.
Raise the garage door using the control button on the garage wall or the remote control unit from a vehicle.
Unlock the lock button if your door control has a lock button it may have been turned on.
The sensors use two photo eye lenses that transmit an infrared beam between them.
Look for small led lights on the 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.