Adjusting Liftmaster Garage Door Opener

We design and engineer residential garage door openers commercial door operators and gate entry systems.

Adjusting liftmaster garage door opener.

After making any adjustments check the safety reversal system and test the protector system. We design and engineer residential garage door openers commercial door operators and gate entry systems. Locate the manual force adjustment dials at the back of the liftmaster garage door opener. Adjust the garage door opener mechanism.

The garage door opener light will blink twice and the down arrow light will begin to blink. Before you adjust the force setting of your garage door opener ensure your garage door tracks jambs and rollers are in good condition. Step 2 find the two dials on the back of the power unit. Adjusting these dials alters how far the garage door travels while closing and how much force in kilograms the motor uses.

Place the stepladder under the garage door opener power unit and climb up so that you have a clear view of the back end of the power unit housing. Refer to the owner s manual to determine which is. Each dial has a recessed adjustment screw in the center of the dial. The travel distance limit setting and the downward force limit setting.

There are two types of adjustable down limit on liftmaster garage openers. On the garage door motor there will be two knobs or dials to adjust the opener and the reverse sensor. Press and hold the down arrow button until the garage door reaches your desired down closed. Use both the up and down arrow buttons for adjustment.

You might damage the motor of your garage door opener if there is a lot of resistance from the door tracks. When the garage door is in your desired up open position press and release the rectangular adjustment button. Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products. Use a flathead screw driver to make the adjustments.