Identify the switches by the up or open and down or close labels.
How to set lower limit on garage door.
Adjusting the close limit 1.
Using the wall button close the garage door.
Next test the garage door with the help of another person by opening and closing it.
Look for two limit adjustment screws.
If the problem remains continue adjusting the down limit switch until the door operates normally.
Turn clockwise to increase the travel distance and counterclockwise to decrease the travel distance.
If the door is closing and reversing you need to set the limit switch so that it stops the door sooner.
Once you locate the limit switch take your flat head screwdriver and start turning the knobs.
How to reset garage door opener limit switches.
These may be on the side of the box but are usually at the rear.
The measurement is used to reset the up.
Open and close the garage door.
When the garage door opens about halfway or 5 feet from the ground and stops the up.
Using a flathead screwdriver turn the down limit switch adjustment screw on the side of the garage door opener counterclockwise one full turn for every 3 inches you need the door to lower so it closes all the way.
Measure the height where the door stops while it is being opened.
If it is not closing all the way set the garage door limit switch so that the door goes to the floor.
Step 2 making the adjustments.
Go to the manufacturer s website or try manuals online they may have a copy that you can download.
Insert a screw driver into the adjustment screw and turn the screw counterclockwise for more close travel and.