On the garage door motor there will be two knobs or dials to adjust the opener and the reverse sensor.
Garage door safety reverse sensor.
Failure to adjust the opener properly may cause severe injury or death.
This video demonstrates how to test the safety reversal system of your liftmaster garage door opener.
The garage door must reverse on contact with a 11 2 inch object or a 2 by 4 board laid flat on the floor.
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If done correctly you ll have disconnected your safety sensors from your garage door.
Use a pair of wire cutters to cut the white and black wire about an inch from the sensor.
The working of these sensors is quite simple.
It prevents the doors from automatically closing when anyone is in the doorway.
Refer to the owner s manual to determine which is which.
The latest garage door sensors are technologically advanced and even allow you to control the opening and closing through an app on your smartphone.
After adjusting either the force or the limit of travel retest the door opener.
This video will show you how to perform the test of your garage door opener s safety reversal system.
Garage doors may display a variety of symptoms if sensors need attention.
Safety reversing sensors keep people and vehicles out of harm s way with liftmaster reversing sensors which detect an obstruction and reverses the gate to prevent an accident.
Sometimes the sensor may be beyond repair due to wear and tear and in such a case your best bet is to replace the garage door sensor with a new one.
Test door opener monthly.
Cut the wires about 1 inch 2 5 cm from the safety sensor.
If any object blocks the path of the infrared sensors the garage door opener will not activate or will reverse if operating.
The adjustment for the opener will.
It is a beneficial device if you have kids or pets in your house.
To learn how to test your garage door opener s protecto.
The garage door sensors are the safety add on to your garage doors.
For more information about the liftmaster products cove.