If they re turned on in both the sensors then there is no issue with the power supply.
No sensor lights garage door.
Look for small led lights on the sensors.
Have no power to sensors neither sensor lights are on.
A common cause of a malfunctioning garage door sensor is lack of power supply.
Have adjusted several times.
The wires from the terminal block on the opener to the door safety sensors should be connected to terminals 2 and 3 on the opener terminal block.
First check the sensor lights.
The lock button on the door control in on.
The garage door sensor yellow light and the green light together create a solid illumination.
If the sensors are not.
Check if the safety reversing sensors are aligned.
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.
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.
Unlock the lock button if your door control has a lock button it may have been turned on.
If you release button early the door reopens.
It sounds like you have a broken wire to the sensor with the green led.
For people who do not know the transmitter has the yellow light and the receiving sensor has the green light.
The sensors use two photo eye lenses that transmit an infrared beam between them.
If you find the lights turned off in one or both the sensors it indicates that there is a problem in power supply.
Inspect each sensor to make sure the green or red power indicator lights are.
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.
Opener works both by remote and wall button to open but will not close by remote and only if hold down wall button until door is fully closed.