Align The Safety Reversing Sensors - Chamberlain RJO20C Mode D'emploi

Installation
(continued)
12

Align the safety reversing sensors

The door will not close if the sensors have not been installed and aligned correctly.
The LEDs in both sensors must be glowing steady, which indicates they are powered and aligned correctly. The sending
sensor (with an amber LED) transmits an invisible light beam to the receiving sensor (with a green LED). If an obstruction
breaks the light beam while the door is closing, the door will stop and reverse to the full open position, and the remote lights
will flash 10 times. If the door is already open, it will not close.
TO ALIGN SENSORS:
The sensors can be aligned by loosening the wing nuts, aligning the sensors, and tightening the wing nuts.
Amber LED
Sending Sensor
If the LEDs are not glowing steadily:
• Check that both sensors are installed inside the garage, one on either side of the door.
• Check that sensors are facing each other with the lenses aligned and the receiving sensor light does not receive
direct sunlight.
• Check that sensors have the same measurement, no higher than 6" above the floor.
Amber LED is not lit:
• Check there is power to the garage door opener.
• Check the sensor wire is not shorted/broken.
• Check the sensor has been wired correctly: white wires to white terminal and white/black wires to grey terminal.
Green LED is not lit:
• Check that the sensor wire is not shorted/broken.
• Check that the sensors are aligned.
ENSURE THE DOOR CONTROL IS WIRED CORRECTLY
The yellow Command LED and the red Learn LED on the door control will blink quickly for up to 5 minutes as the door
control recharges. When the door control is operational, the yellow Command LED will glow steadily.
If the receiving sensor is in direct sunlight, switch it
with sending sensor so it is on the opposite side of
the door.
(invisible light beam)
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Green LED
Receiving Sensor