Most newer garage door openers function by learning the frequency of the handheld openers.
Resetting garage door sensors.
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.
To reset the system you will need to locate the button on the motor that reads learn or home in many cases this button will be located on the same side as the device s antenna and next to an led.
If you have an automatic garage door then you have to disconnect the door sensors.
The first thing you need to do is stop the power supply for the garage door.
Cycle the garage door through the opening and closing actions using the control on the garage wall.
The latest garage door sensors are technologically advanced and even allow you to control the opening and closing through an app on your smartphone.
Step 2 pull the emergency release cord to disconnect the garage door from the opener.
Try opening the garage door with the remote and see what happens.
The safest way to bypass a garage door sensor is to disconnect the garage door from the opener.
Join us as we show the step by step process on aligning your safety reverse sensors.
Troubleshooting safety sensors for garage doors.
Safety sensors are critical components of most automatic garage doors.
Press the garage door opener wall button to fully open the garage door.
Disconnect the emergency release cord.
Check that the line of the string is level.
Use a pair of wire cutters to cut the white and black wire about an inch from the sensor.
This will cause the trolley to move into position and reconnect to the garage door.
Lay a level so the bottom runs along the string.
To reconnect the garage door to your liftmaster garage door opener manually close the garage door pull the emergency release handle down.
Now press the remote control.
If done correctly you ll have disconnected your safety sensors from your garage door.
Led colors range by brand and model.
The sensors detect obstructions in the path of a closing garage door and.
Reattach the cut wires to the new sensors.
Cut the wires about 1 inch 2 5 cm from the safety sensor.
If the line of the string isn t level adjust 1 or both garage door sensors by sliding the mounting bracket upward.