The safety sensors (often called "photo eyes" or "reversing sensors") must be connected and properly aligned before the garage door opener will move in the downward direction. Problems with the safety sensor wiring usually occurs due to a poor connection, incorrectly connected wires or a short in the wire that was caused by a staple cutting into the wire.

Helpful Hint: If you are unable to get the door closed and the safety sensors are the issue, the garage door can be closed by over-riding the sensors. To do this, simply press and hold down the door control push bar on the wall station until the door has traveled down and is completely closed.

Testing the Safety Sensor Wires

1. Remove the sensors from the brackets.
2. Remove the wires from the wire nuts or cut the sensor wires 12" from the sensors.
3. Strip both ends of wires from each sensor and twist like colored wires together. Proceed with both sensors to the operator.
4. Remove the existing wires from the white and grey terminals on the back of the operator.
5. Attach or insert white wires into the white terminal and black/white striped wires into the grey terminal.
6. Point the sensors at each other - if both sensor LED's turn on, there is an issue with your wiring. Replace the wires between the opener and the sensors. If the LED’s DO NOT turn on, replace the sensors.

1. Remove the receiving sensor(green LED) from bracket. To do so, simply remove the wing nut.
2. Next, point the receiving sensor away from the sending sensor (amber LED) so that the LED light is completely off.
3. Once the LED light is off, wait 10 seconds.
4. Slowly rotate sensor back, aligning sensor with sending sensor, until it lights up green again. When you have a strong, solid green light, simply reinstall the sensor back on to the bracket and reattach and tighten the wing nut.