This is almost always the result of a dirty or obstructed safety feature.
Garage door opener goes down then back up.
If i dis connect the door from the chain it still does the same thing.
Manually i can raise and lower the door without any problems.
It goes partway down reverses direction and goes back up again.
Possible reasons why your garage door hits the floor then goes back up.
Turn off the sure lock aka vacation mode on the wall console check if limits are properly set check the door balance condition and door spring check opening force control or force settings.
Your travel down setting needs to be adjusted.
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.
The garage door keeps going up and down.
Here s a rundown of some of the possible reasons this can be happening.
The garage door goes down then back up.
As is the case with so many issues at the home there s no one reason why your garage door closes then opens.
Here are some symptoms of the problem.
Even if i hold the button down the garage door returns up after a foot or so.
Your garage door opens immediately after closing.
Your garage door opens when it hits the ground.