Chamberlain is one of the top-notch garage door opener manufacturers, it belongs to one of the three manufacturers that dominate the market of garage door opener. As like the other manufacturer, most of residential garage door openers made by Chamberlain are DIY openers that someone can install, program and adjust.
Adjusting Chamberlain door opener limit is just a walk away, refer to Chamberlain door opener manual for more detailed instruction. Before you start adjusting the opener limits, you should know when the right time to adjust and how to adjust it.
You can start adjusting the limit setting when your door refuses to open completely and just opens about five feet maximum. In this case you need to add the up travel limit. Using a screw drive, turn up the limit adjustment screw clockwise. As your information one clockwise turn is as much as 2 inches or 5 cm of travel.
You can also perform adjusting the limit if your Chamberlain door opener does not fully close. It indicates that you need to add the down travel limit. Adding the close travel limit is as simple as adding the open travel limit. Turn counterclockwise the down travel limit adjustment screw. If your door reaches the fully closed position, but reverse the motion; it shows that you need to decrease the down travel limit. You can adjust the down travel limit by turning down the limit adjustment screw clockwise, one turn equals to 2 inches or 5 cm of travel.
You might find that your Chamberlain opener reverses when closing, but you are sure that there is no interference to the travel cycle. When you found the opener light is flashing when you find such a case, check the Safety Reversing Sensors. The problems may occur due to the Safety Reversing Sensors installation is not complete, misaligned or obstructed.