Step 2 pull the emergency release cord to disconnect the garage door from the opener.
Resetting garage door sensors.
Safety sensors are critical components of most automatic garage doors.
The safest way to bypass a garage door sensor is to disconnect the garage door from the opener.
To reconnect the garage door to your liftmaster garage door opener manually close the garage door pull the emergency release handle down.
Try opening the garage door with the remote and see what happens.
Remove any debris dust or cobwebs from the electric eye lenses on each sensor with a clean rag.
If you have an automatic garage door then you have to disconnect the door sensors.
The latest garage door sensors are technologically advanced and even allow you to control the opening and closing through an app on your smartphone.
Reattach the cut wires to the new sensors.
If the line of the string isn t level adjust 1 or both garage door sensors by sliding the mounting bracket upward.
Join us as we show the step by step process on aligning your safety reverse sensors.
You will still be able to use the doors by manually opening or closing it.
Cycle the garage door through the opening and closing actions using the control on the garage wall.
Check that the line of the string is level.
Led colors range by brand and model.
Now press the remote control.
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.
The first thing you need to do is stop the power supply for the garage door.
The sensors detect obstructions in the path of a closing garage door and.
Most newer garage door openers function by learning the frequency of the handheld openers.
Continue until the sensors are once again level.
Disconnect the emergency release cord.
If done correctly you ll have disconnected your safety sensors from your garage door.
Press the garage door opener wall button to fully open the garage door.
Lay a level so the bottom runs along the string.
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.