What color should the lights be on garage door sensors? Do I need some adjustment on door sensors to restore the functionality? So, your garage door is causing a problem. You want to bring back the functionality. But you do not know the issue, right? If your garage door opener is not working, you might blame the faulty safety sensors.

What Color Should the Lights Be On Garage Door Sensors

What Color Should the Lights Be On Garage Door Sensors
What Color Should the Lights Be On Garage Door Sensors

If you have an issue with your garage door not closing or your garage door going back up. it is likely that your sensors are the root of the problem. You just need to understand the warning signs and then you can fix the issue. In this article, you will educate you more on safety sensors and motor unit lights and how to fix some minor issues.

What Is the Problem with the Opener?

If you have a problem with the garage door opener, the problems might be with safety sensors or motor lights. You will have to check both. The safety sensors have an imperceptible beam of the lights to detect any obstruction in the door’s path. The door will not close when the beam is blocked. You will have to check the path to find out and remove the item that is blocking your garage door.

Also, you will have to check the safety sensor alignment. You can consider this if you do not find any blocking item in the infrared beam. In this condition, your sensor might be out of the position and that is blocking the door. All the safety sensors feature an indicator light. When the sending sensor will feature the yellow light, the receiving sensor will have the green light. The sending light needs to be always lit. Otherwise, the door will not operate. You will have to make sure that both the lights are on. The receiving sensor will show the green light when sensors are unobstructed and aligned properly.

Understand the Motor Unit Error Code

Industry professionals say when any of the above does not work, you will have to understand the error code on the motor unit. The motor unit will flash the troubleshooting LED many times. You will have to understand the motor unit lights to know the exact cause. Here are more details.

What Color Should the Lights Be On Garage Door Sensors
What Color Should the Lights Be On Garage Door Sensors
  • One blink indicates the problem with sensor wires. These are not properly connected.
  • Two blinks are indicating that the sensor wires are shorted.
  • Four blinks will show that the sensor eyes are not aligned properly. They need a slight adjustment.

If you are using newer chain-drive models or belt-drive models, you can check for the following indications.

  • One blink down and one blink up shows that wires are broken or sensors are uninstalled
  • Two blinks down and one blink up will indicate the used wires are reversed or shorted
  • 4 blinks down and one blink up will reveal misalignment or obstructed sensor
  • 6 blinks down and 4 blinks up will indicate that sensors are misaligned or obstructed temporarily

Conclusion

What color should the lights be on garage door sensors? Every garage door safety sensor comes with a sending and receiving light. The sending light is yellow and the receiving light is green. When both the lights are on, your garage door will work smoothly. If any of them does not work, your garage door will have operational issues.

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