Here s a rundown of some of the possible reasons this can be happening.
Garage door closes a few inches then opens.
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.
If the door is working properly it should be easy to lift by hand.
The garage door can be operated manually by disconnecting the garage door opener from the door using the red pull cord.
Possible reasons why your garage door hits the floor then goes back up.
This is almost always the result of a dirty or obstructed safety feature.
The torsion springs are under extreme tension and are dangerous and should only be replaced or adjusted by a professional.
It goes partway down reverses direction and goes back up again.
When the garage door opens about halfway or 5 feet from the ground and stops the up limit switch needs to be adjusted.
You can usually tell if a torsion spring is broken by looking at it.
Your travel down setting needs to be adjusted.
As is the case with so many issues at the home there s no one reason why your garage door closes then opens.
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.
Fast easy step by step process on how to properly program your garage door travel system.
This indicates that the springs torsion springs in the case of the photo above are working properly and are not the issue.
If the door starts to open but won t move more than a few inches the torsion spring may be broken.
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.
You push the button to close the garage door.
The springs must have proper tension to open and close your door.