Locate the force adjustment screw.
Garage door opener hums and force adjustment.
You can increase the up force by turning the adjustment screw clockwise.
Alternatively turn the screw.
If your door stops without opening completely then you may need to increase the up force on the garage door opener.
To change the down force and the up force of your opener find the force adjustment knob and turn it to adjust the up force or down force.
With a screwdriver adjust these screws.
Because it hums when you try to open it the battery is working properly.
If the opener is not picking up the door properly adjust the opening pressure until the door lifts smoothly.
Test by opening and closing the door.
Turn the screw clockwise one quarter turn to increase the amount of force required to reverse the door s direction.
When you have made your adjustment test the door by lowering and raising it.
Turn the screw a quarter turn at a time and retest after each adjustment until the door opens completely.
Test and adjust the door opener s reverse feature.