If they re turned on in both the sensors then there is no issue with the power supply.
Garage door opener sensors not working.
Press the button that closes the garage door on the garage wall or on your remote.
If it isn t it could get in the way of the electronic beam and prevent the garage door from closing because the cardboard tube is breaking the beam.
If the batteries in your transmitter are dead the transmitter won t be able to send a signal to your garage door to open.
To help you troubleshoot your garage door issues here are the top 10 reasons your garage door won t work.
First off your sensors just may need cleaned off so try to gently remove any dust or dirt first and see if that works.
If you find the lights turned off in one or both the sensors it indicates that there is a problem in power supply.
This may sound obvious but your garage door transmitters need power to work.
Look for small led lights on the sensors.
This is to verify if the socket works.
If the wiring is fine and your garage door opener is still not working then the problem may be that one of the sensors has simply failed.
As with many such problems the most common problem is the simplest one the motor unit has been unplugged.
If the sensors are working the garage door should immediately stop closing and return to the open position.
If that doesn t work it could be electrical.
It s also possible that the circuit breaker fuse or gfci outlet powering the door opener circuit has tripped or burned out.
Remove any debris dust or cobwebs from the electric eye lenses on each sensor with a clean rag.
The sensors have to be aligned with each other and also have to be connected correctly to the garage door system in order to work.
So get a ladder and place it under the opener.
The first thing you want to check is the socket your craftsman opener is connected to.
The transmitter batteries are dead.
This can happen from old age your basic wear and tear or even constant exposure to the sunlight.
Check power supply to garage door opener.
When your garage door opener is not responding to any command from the remote or the door control you need to check if the opener has electricity.
Put a tube on the electric eye on each side of the garage door one side for mornings the other side for evenings 5 make sure the tube is extending straight out from the electric eye.
Begin by checking the outlet where the door opener is plugged in and make sure the cord is plugged in all the way.
A simple way to do this is to unplug the garage door opener and then plug in another device say your phone or a light bulb to see if it lights up.
Cycle the garage door through the opening and closing actions using the control on the garage wall.
Unplug the garage door opener from the socket outlet and plug in another device.
If the garage door opener is not powered up it won t work.