In fact you really should read the entire garage door repair article.
Genie garage door only goes down a few inches.
The problem is either due to a blocked path between the sensors dirty eyes loose wires at the sensors or at the motor head or just bad sensors.
The garage door can be operated manually by disconnecting the garage door opener from the door using the red pull cord.
Clicking the remote at that point just closes it.
You push the button to close the garage door.
I have a genie is isl ims series garage door.
Ever notice how it is easier to pull a wagon over a curb than it is to push it.
Try to lower the door.
If the door is working properly it should be easy to lift by hand.
This just started a couple weeks ago.
This is almost always the result of a dirty or obstructed safety feature.
You will find that the door will only move an inch or so in the close direction and reverse.
Continue to turn the down limit adjustment until the door opens and closes properly.
My garage door will open only a few inches and then stops.
If it is a new installation check the postion of the door arm.
It will make troubleshooting later much easier.
It goes partway down reverses direction and goes back up again.
Remember that sometimes a garage door opener can increase the binding in a door just because of the way it pushes the door down.
Garage door starts down then stops and goes back up or safe t beam system malfunction.
Try to operate the garage door manually this helps you determine if the problem is related to the door or the motor.
For most doors a complete rotation of the screw allows the door to advance 2 inches.
Make sure only the safe t beams that came with this garage door opener are installed.
Genie garage door only moves a few feet and stops and when you push the button again it moves a few inches or a foot down.
My garage door opens about six inches and stops i press the button twice so it will stop going down and then is goes up another 6 inches or so.
Check if the limits are properly set.
Check if the safe t beams red led light.