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WIRE THE SENSORS
1. Separate the ends of the new sensor wire. Cut any exposed wire down to the
insulation.
2. Using the four locking connectors, connect the new wire to the existing wire by
color: white/black to white/black, white to white. NOTE: If installing in a pre-wired
garage, connect the new sensor wires to the same pre-installed wires as the old
sensors. Insert the wire all the way into the connector. Firmly crimp the connector
with adjustable pliers. Once crimped, the connector cannot be re-used.
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Reconnect power to the garage door opener.
ALIGN THE SENSORS
IMPORTANT: The safety reversing sensors MUST be connected and aligned
correctly before the garage door opener will move in the down direction.
When the garage door opener has power, check the safety reversing sensors. If the
sensors are aligned and wired correctly, both LEDs will glow steadily.
To align the safety reversing sensors:
1. Loosen the wing nuts.
2. Adjust the sensors up or down until both LEDs glow steady indicating alignment.
3. Tighten the wing nut to secure the sensor.
TROUBLESHOOTING
If either of the sensor LEDs are off, there is no power to the sensor:
1. Check that you have power to the garage door opener.
2. Check the sensor wire is not shorted or broken.
3. Check that the sensors are wired correctly; white wires to white terminal and
white/black wires to grey terminal.
1
If the green receiving sensor LED is blinking, the sensors are obstructed or
misaligned:
1. Check for obstructions in the sensor light beam.
2. Align the sensors.
3. If the receiving sensor (green LED) faces direct sunlight, switch the sensors to
opposite sides of the door to assure proper operation.
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Wing nut
3
2
TEST THE SENSORS
Without a properly installed safety reversing sensor, persons (particularly small
children) could be SERIOUSLY INJURED or KILLED by a closing garage door.
1. Open the door. Place the garage door opener carton in the path of the door.
2. Press the remote control push button to close the door. The door will not move more
than 1" (2.5 cm), the garage door opener lights will flash 10 times, the green LED on
the receiving sensor will blink.
The garage door opener will not close from a remote control if the sensor light beam is
misaligned or obstructed. If the garage door opener closes the door when the safety
reversing sensor is obstructed (and the sensors are no more than 6" [15 cm] above the
floor), call for a trained door systems technician.
Receiving sensor
Green LED
TEST THE SAFETY REVERSAL SYSTEM
Without a properly installed safety reversal system, persons (particularly small
children) could be SERIOUSLY INJURED or KILLED by a closing garage door.
• Safety reversal system MUST be tested every month.
• After ANY adjustments are made, the safety reversal system MUST be tested.
Door MUST reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat)
on the floor.
1. With the door fully open, place a 1-1/2 inch (3.8 cm) board (or a 2x4 laid flat) on the
floor, centered under the garage door.
2. Press the remote control or wall-mounted door control to close the door. The door
should stop and reverse when it makes contact with the board. The door returns to
the previous open position. Newer model openers will beep and the lights will flash 5
times to indicate reversal.
3. If the door reverses, remove the board. The test is complete.
If the door stops but does not reverse:
1. Refer to your garage door opener manual and set the down limit closer to the
garage floor. NOTE: On a sectional door, make sure adjustments do not force the
door arm beyond a straight up and down position.
2. Repeat the Safety Reversal test.
If the test continues to fail, call a trained door systems technician.
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