Your garage door s logic board is the brain of your garage door opener.
Genie garage door starts to close then reverses.
The 2 nd cause is the closing force could be set too light and the normal tension of the closed position exceeds what the door believes to be allowable tension.
You will find that the door will only move an inch or so in the close direction and reverse.
Check the closing force control.
If one of the eyes has been knocked out of alignment this will also cause the door to reverse.
One for the opening limit and one for the closing limit.
Or door will only open check safe t beam wire connection at the powerhead and at the stb s.
Maybe you have to hold the garage door button down for the door to close.
You push the button to close the garage door.
When the opener is activated the screw rotates causing the nut to move until it reaches the switch.
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.
However if the door travels all the way closed and then reverses look to the 2 nd 3 rd possible causes.
Look at the photo eyes themselves if there are cobwebs or if there is dust on the lenses the eyes will sense this and cause the door reverse.
This is almost always the result of a dirty or obstructed safety feature.
You can clean them off by using your finger or a dry rag.
Your logic board needs replaced.
If you re genie excelerator just stops when either trying to open or close your garage door check out this video.
When the opener reverses the screw turns the opposite way and the nut travels back.
This video will show you a few quick.
Get logic board replacement.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.
Each photo eye has a light on it.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
Check contact reverse test that is in the owners manuals check the garage door for binding.
There may be two nuts on one track.
Door starts down then stops before it is closed.
Adjust the limits as needed.
The transmitters remotes will not work to close the garage door.
This brain can wear out in time so you could need a replacement.
Door starts up but stops before it is completely open.
Check if limits are set properly.
It goes partway down reverses direction and goes back up again.