Loosen one sensor and move it until the string is level.
Garage door opener eye alignment.
Then you can untie the string and test the door.
These components are a safety feature installed in garage doors manufactured after 1993 and they re intended to signal to your garage door when there s an object obstructing the path of the closing door.
Proper height for a garage door sensor is 4 to 6 inches 10 2 to 15 2 cm.
In this case you will set up the level aligned with one sensor then adjust the opposite sensor until the beam of your laser level is hitting the sensor.
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If you re unsure about the wires take help.
If it isn t then you know that the sensors need to be adjusted.
If you have a laser level you can use it instead of a string to align your garage door.
Check if the alignment is proper and adjust as needed to make sure they are both facing each other.
How to troubleshoot the electric eye in a sears craftsman garage door.
How to align garage door sensors.
Use a spirit level to see if the string is level.
There are two sensors.
These sensors are designed to protect children from unnecessary harm and are usually positioned about 6 to 8 inches in front of the vertical tracks that the garage door moves up and down on.
To test the alignment tie a length of string between the two sensors.
The garage door s photo eye sensors are a pair of black boxes installed near the bottom of your door s opening.
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If the photo eye senses an obstruction it stops the door from closing and potentially prevents damage or injury to a vehicle.
The photo eye of an automatic opening garage door is a safety feature.