Use both the up and down arrow buttons for adjustment.
How to adjust force on chamberlain garage door opener.
If the door won t stay open to its full extent or doesn t close flush to the ground the travel control needs an adjustment.
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Position ladder below the back or rear portion of the opener to access the screws.
Ways to keep chamberlain garage door openers working at optimum levels.
Locate the force adjustment screw.
The garage door opener light will blink twice and the down arrow light will begin to blink.
For a door that doesn t reverse while closing hold the door as it opens to adjust the down force.
On chamberlain garage door openers they are usually blue.
Press and hold the down arrow button until the garage door reaches your desired down closed.
If door does not stop in this position an up or down adjustment.
Find the chamberlain garage door opener technical support you need to get your garage door opener operational.
Open door using remote bottom of door should come to rest just below header.
E g if the dial is set to 1 increase it to 2.
A flathead screwdriver is all that is needed to make a limit adjustment on most garage door openers.
Increase the open force adjustment dial slightly.
Now open the garage door with your remote to check if it opens fully.
Turn the screw clockwise one quarter turn to increase the amount of force required to reverse the door s direction.
If the up travel isn t functioning properly turn the up limit adjustment screw clockwise.
This will adjust the open force.