On the garage door motor there will be two knobs or dials to adjust the opener and the reverse sensor.
How to adjust chamberlain garage door sensors.
Chamberlain garage door simple sensor diagnose and fix.
After inspecting your safety sensors and the leds on both the sending and receiving sensor is off check if safety sensors are correctly installed on the chamberlain garage door opener.
If your garage door sensors are outside of this range remove them entirely from the garage door frame and install leveled inside the safe zone.
To do that look for a step ladder and verify that the wires from the sensors are correctly connected to the garage door opener.
How to adjust garage door opener sensors diy note.
Adjust the garage door opener mechanism.
When the invisible beam path is obstructed or misaligned while the door is closing the door will rev.
Proper height for a garage door sensor is 4 to 6 inches 10 2 to 15 2 cm.
Depending on the type of technology and when the mechanism was made there are many ways to make adjustments to a chamberlain garage door opener.
In this video i show you how to realign your garage door sensors so that the garage door can function properly.
Although many openers are self adjusting there are ways to tinker with the travel and level the limit so the control works properly.
Higher than that can miss many low lying objects including pets.