Your logic board needs replaced.
Garage door only opens 6 inches then closes.
Get logic board replacement.
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.
This is almost always the result of a dirty or obstructed safety feature.
Fast easy step by step process on how to properly program your garage door travel system.
My garage door opens about six inches and stops i press the 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.
Garage door will only open about 3 inches then stops this morning i opened my garage door drove out tried to close it but it refused to close.
You push the button to close the garage door.
If the garage door connected to your liftmaster opener only opens part of the way or it begins to open but then reverses check the track and the surrounding area for any objects that may obstruct.
After a few minutes i realized one of the wires for one of the garage door eyes was covering the eye so i moved it and the door closed.
It goes partway down reverses direction and goes back up again.
This read more.
This brain can wear out in time so you could need a replacement.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.