Place a stepladder beneath the motor head of the garage opener.
How to set the limits on liftmaster garage door.
How to reset garage door opener limit switches.
Limit adjustment settings regulate the points at which the door will stop when moving up or down.
The motor head is the box containing the lightbulbs mounted to the ceiling.
Measure the height where the door stops while it is being opened.
Over time it may be necessary to adjust the switch to make the garage door close completely if it is not working properly.
Equal about 2 of travel adjustment.
Open the garage door and watch it closely as it opens.
After making any adjustments check the safety reversal system and test the protector system.
8165w and 8164w are ac chain driven garage door openers.
One full turn of the adjustment screw will.
This is for models with manual adjustment screws.
Using the up open limit adjustment screw you will turn the screw clockwise for more open.
How to adjust a liftmaster door down limit.
A garage door limit switch is a device that helps you set the appropriate functionality of a garage door.
For information on adjusting your travel and force limits see how to program the travel on a security 2 0 and myq enabled garage door opener.
It is important to set the up open travel limit properly.
The measurement is used to reset the up.
Use a flathead screw driver to make the adjustments.
To reduce the travel limit turn the dial with a flat screwdriver in the direction opposite to the arrow shown beneath the dial.
To check for compatible remote controls see liftmaster remote control and keyless entry compatibility chart.
Locate the limit and force adjustment dials located on the back and sides of the unit.
Locate the two travel limit dials on either the left or right side of your garage door opener depending on where you are facing.
When the garage door opens about halfway or 5 feet from the ground and stops the up.