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