On chamberlain garage door openers they are usually blue.
How to adjust force on chamberlain garage door opener.
Alternatively turn the screw.
Open door using remote bottom of door should come to rest just below header.
If the up travel isn t functioning properly turn the up limit adjustment screw clockwise.
Use both the up and down arrow buttons for adjustment.
Find the chamberlain garage door opener technical support you need to get your garage door opener operational.
This will adjust the open force.
Now open the garage door with your remote to check if it opens fully.
Position ladder below the back or rear portion of the opener to access the screws.
Step 2 adjust the force if your door doesn t rise at least five feet when it is suppose to be opening hold the bottom of the garage door while it is lowering.
The garage door opener light will blink twice and the down arrow light will begin to blink.
E g if the dial is set to 1 increase it to 2.
Turn the screw clockwise one quarter turn to increase the amount of force required to reverse the door s direction.
When the garage door is in your desired up open position press and release the rectangular adjustment button.
Ways to keep chamberlain garage door openers working at optimum levels.
For a door that doesn t reverse while closing hold the door as it opens to adjust the down force.
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.
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.
From informational videos to product manuals and troubleshooting articles the chamberlain group resource library has the information you need.