This brain can wear out in time so you could need a replacement.
Garage door only opens 6 inches then closes.
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.
Garage door only travels a little way and then reverses does your garage door only travel a little way 6 inches or so and then reverse.
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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.
Your garage door s logic board is the brain of your garage door opener.
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.
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.
You push the button to close the garage door.
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.
Your logic board needs replaced.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.
Fast easy step by step process on how to properly program your garage door travel system.