If the up travel isn t functioning properly turn the up limit adjustment screw clockwise.
How to adjust the garage door height on my chamberlain.
Turn it only a quarter of a turn.
Every complete turn equals 2 inches of travel.
To decrease it turn it counterclockwise.
This video details how to adjust the opener force and travel of the door.
Note adjustment screws are on the left side of garage door opener motorheads.
When the garage door is in your desired up open position press and release the rectangular adjustment button.
Establishing the travel limits of chamberlain garage door openers.
In order to increase the down travel rotate the down limit adjustment screw counterclockwise.
If you wish for the door opening height to increase you will turn the up or open screw in a clockwise direction.
Use both the up and down arrow buttons for adjustment.
The garage door opener light will blink twice and the down arrow light will begin to blink.
Move it the opposite way to decrease it.
You can as well turn on open in case of the garage door with a mark and close sign.
If you would like to increase the height of the garage door then you will have to turn the up screws.
Step 4 test the opener to see if the door height is now at the desired level.