Check if the limits are properly set.
Garage door opener goes down and the goes bak up.
Your garage door s logic board is the brain of your garage door opener.
This brain can wear out in time so you could need a replacement.
It goes partway down reverses direction and goes back up again.
Most likely this will resolve the situation.
The garage door goes down then back up.
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.
The problem that i am having is it starts down then after about a foot it goes back up.
Make sure only the safe t beams that came with this garage door opener are installed.
The garage door keeps going up and down.
Your garage door opens immediately after closing.
If that isn t the problem then try opening and closing the door with the wall switch.
Turn the down limit switch screw clockwise one turn with a flat blade screwdriver if the garage door closes and then begins to open back up.
Try replacing the batteries in the remote and trying again.
It may be your garage door sensor.
In the case that the door responds to the switch then there s a good chance it s the remote that has an issue.
There are four common problems with garage door sensors three of these homeowners can fix themselves.
Adjust the limits as needed.
Make sure your garage door is closed disconnect your chamberlain garage door opener from the garage door by pulling the emergency release handle down and back towards the garage door.
Your garage door opens when it hits the ground.
I have a craftsman garage door opener 1 2 hp chain drive.
Manually lift the garage door and release it when it is opened halfway.
If it is a new installation check the postion of the door arm.
You push the button to close the garage door.
Garage door starts down then stops and goes back up or safe t beam system malfunction.
The garage door will automatically go in reverse.
Even if i hold the button down the garage door returns up after a foot or so.
I have checked the photo eyes and they look fine no blinking lights.
Check if the safe t beams red led light is flashing.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.