Door must reverse on contact with 1 1 2 3 8 cm high object or 2 x 4 laid flat on floor.
How to adjust garage door travel limits.
After any adjustments are made the safety reversal system must be tested.
Although many openers are self adjusting there are ways to tinker with the travel and level the limit so the control works properly.
Start with the garage door.
You can do almost anything all you have to do is try.
How to program the travel limits for liftmaster chamberlain craftsman garage door opener with arrow type program buttons with a black button.
This video demonstrates how to program the travel on a chamberlain garage door opener with a yellow learn button.
Adjust the close force control to change the amount of force your garage door opener uses to close the door.
Open the garage door and watch it closely as it opens.
Depending on the type of technology and when the mechanism was made there are many ways to make adjustments to a chamberlain garage door opener.
How to adjust the travel limits of your garage door if it won t close all the way.
Setting the up open limit 1.
When the garage door opens about halfway or 5 feet from the ground and stops the up limit switch needs to be adjusted.
Incorrect adjustment of garage door travel limits will interfere with proper operation of safety reversal system.