How To Set Limit Switches On Garage Door

It should show no connection no continuity or full resistance push on the switch button or push the spring arm to push the button and the meter should show a connection between the two probes.

How to set limit switches on garage door.

First locate the limit switch. On certain garage door models the limit switch is located on the tracks. Go to the manufacturer s website or try manuals online they may have a copy that you can download. Garage door doesn t open all the way.

The measurement is used to reset the up. If it is not closing all the way set the garage door limit switch so that the door goes to the floor. Using a flat blade screwdriver raise the door up by turning the up limit screws in a clockwise direction. Set your multimeter to continuity or resistance and connect it to the two indicated terminals on the switch.

Measure the height where the door stops while it is being opened. If the door is closing and reversing you need to set the limit switch so that it stops the door sooner. Stand on a step ladder to reach the up limit switch adjustment screw on the side of the garage door opener. It is also possible that the limit switch is located in the opener mechanism.

A garage door that fails to open fully can be fixed by adjusting the limit screws. Open the garage door and watch it closely as it opens. Press the button on your remote to open the garage door. Repeat the same with the down limit in anticlockwise direction.

The chain trolley might move and if it does leave a gap of 2 to 4 inches between the trolley and the cover protection bolt. The set screw only needs to be loosened enough to allow the bracket to slide on the rail. Switches requires the use of a screw drive or socket to loosen the set screw on the limit switch bracket. Use a ladder to get there and get ready to make the necessary adjustments.

If you can t find it there consult your user manual for reference. Disconnect the power to the opener and locate the up limit adjustment scr.