Garage Door Safety Sensors |How to Position When Installing Two Openers
Garage door safety reversing sensors protect people, pets, and vehicles from the path of a closing garage door. They work by projecting an invisible beam across the garage door opening. If anything interrupts the beam while the door is closing, the door automatically reverses to prevent contact.
These sensors are mounted on both sides of the garage door opening, no higher than 6 inches (15 cm) above the floor. Each sensor has a small LED light to indicate power and proper alignment:
- Amber LED = sending sensor
- Green LED = receiving sensor
Example of sensor placement in a garage. Your sensors may not look exactly like this but should be installed no higher than 6 inches above the floor.
|
Positioning Sensors with Two Garage Door Openers
- Install Two Separate Sets of Sensors
- Each garage door opener requires its own sending and receiving sensors.
- Do not share sensors between doors.
- Sending Sensors Placement
- Identify the sending sensor by its amber (yellow) LED.
- When installing two doors side by side, place the sending sensors back-to-back in the space between the doors.
- Mount them 4–6 inches (10–15 cm) above the floor.
- Receiving Sensors Placement
- Identify the receiving sensor by its green LED.
- Mount one receiving sensor opposite each sending sensor.
- Ensure the sensors face each other directly and are level.
- Check Alignment
- After installation, verify that both sending and receiving sensors are properly aligned.
- The LEDs should glow steadily when aligned correctly.
- Misaligned sensors may prevent the doors from closing
Additional Resources
Accessories: Go to the Accessories page in your owner's manual to find compatible accessories for your garage door opener.
Replacement Parts: To order replacement parts, visit Chamberlain.com or LiftMaster.com. Unsure of which part you need? Get help finding your part number.
