This is almost always the result of a.
Liftmaster garage door goes down then back up.
To fix this issue and get your liftmaster garage door opener working again follow these troubleshooting steps.
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.
This will disconnect the garage door opener from the door.
Close the door with either the door control or the remote control.
Possible reasons why your garage door hits the floor then goes back up.
It goes partway down reverses direction and goes back up again.
Here s a rundown of some of the possible reasons this can be happening.
When closing door on liftmaster garage opener sometimes it closes without a hitc.
The garage door will automatically go in reverse.
My liftmaster garage door just started to go half way up and stop press the button go down a little press again finally close then pop up a inch then would lose all power for about 20 30 seconds submitted.
Your travel down setting needs to be adjusted.
The door goes down then after a second it goes back up.
You push the button to close the garage door.
Then the condition returns.
There is nothing between the sensors that would cause it to trigger then sensor.
Please click accept if you have been helped.
It goes part of the way down and 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.
Pull the emergency release handle down and back towards the garage door opener.
My garage door won t close all the way.
If there solid and the door still doesnt go down hold the button on the inside of the garage that is on the wall all the down until the garage door goes down and let me know if it goes down now.
This situation has occurred three or four times since my original post in november.
I decrease the down travel and all is well for a couple of weeks.