Locate them and determine if they are out of alignment.
Genie garage door will not close all the way.
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.
One or more of these reasons is likely responsible for your garage door closing partially but not all the way.
There is one on each side of the door.
The transmitters remotes will not work to close the garage door.
They both have lights and both lights should be on.
Replace the wiring if needed with garage door opener wiring.
You will find that the door will only move an inch or so in the close direction and reverse.
If the problem persists check to see if the red safe t beam led indicator is blinking.
Though this problem should be obvious it shouldn t be overlooked.
Genie openers apply only limited force to the garage door during closing.
All you will have to do in this case is readjust the sensors to allow the garage door to fully close.
If one of them is off or blinking it means the invisible beam that tells the opener that the way is.
Your garage door opener may tell you this by showing a blinking light.
The door won t close all the way if the bolt is too high on the track.
Check for reversed broken or cut wires.
For series ii wall console you can remove the wires from the back of the wall console and touch them together to see if the garage door moves.
Step 4 turn the close force dial in small increments until the garage door reaches the ground when you hit the close button on the remote.
If it is be sure that the lenses are mounted five to six inches from the floor on either side of the garage door opening.
If there s something blocking the door from closing all the way a full close will be impossible.
Staples can cut insulation and short out the wires.