Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your DDcafor 820CB Garage Door Safety Sensor Kit. This safety sensor system is designed to prevent accidents by detecting obstructions in the path of a closing garage door. Please read this manual thoroughly before installation and use to ensure proper function and safety.
Safety Information
Always disconnect power to the garage door opener before performing any installation or maintenance. Failure to do so may result in electric shock or injury. Ensure all wiring connections are secure and correctly polarized. The safety sensors are a critical safety feature; do not bypass or disable them. Regularly test the sensors to confirm proper operation.
Figure 1: The safety sensor system emits an invisible beam to detect obstructions and prevent accidents.
Compatibility
The DDcafor 820CB Garage Door Safety Sensor Kit is a replacement for Chamberlain, LiftMaster, and Craftsman garage door openers manufactured after 1997. It is compatible with all operators featuring the Safety Sensor option (identifiable by an amber LED light). This kit replaces original manufacturer parts such as 41A5034, G801CB-P, 801CB, and 041-0136.
Compatible with various Chamberlain models including: 1265, 2210, 2220, 2265, 2265-267, 2280, 2500, 2580, PD210, PD212, PD420, PD420-2, PD460, PD610, PD612, PD612K.
Compatible with various LiftMaster models including: 8587, 8557, 8550, 8500, 8360, 8355, 3800, 3595, 3585, 3240, 3270, 3255, 1356, 1355, 3265-267.
Also compatible with all fail-safe units (equipped with infrared eye beam) from LiftMaster, Chamberlain, Craftsman, Sears, and Wayne Dalton.
Package Contents
The DDcafor 820CB Garage Door Safety Sensor Kit includes the following components:
- Sending Sensor (with yellow LED) x 1
- Receiving Sensor (with green LED) x 1
- Mounting Brackets x 2
- Wires
- Connectors
- Screws and Wing Nuts
Figure 2: All components included in the 820CB Safety Sensor Kit.
Figure 3: Detail of the sending and receiving sensors.
Figure 4: The included mounting brackets.
Installation Instructions
Follow these steps to install your DDcafor 820CB Garage Door Safety Sensor Kit. Ensure the garage door opener is disconnected from the power source before beginning.
- Mounting the Sensors:
The safety reversing sensors must be mounted on either side of the garage door, no more than 6 inches (15 cm) above the garage floor. The sensors should face each other, with the invisible beam aligned across the garage door opening. Use the provided brackets, screws, and wing nuts to secure the sensors. - Wiring the Sensors:
Connect the wires from each sensor to the corresponding terminals on your garage door opener. Typically, white wires connect to the white terminal, and white/black striped wires connect to the gray/black terminal. Ensure a secure connection for both sensors. - Aligning the Sensors:
Once wired, restore power to the garage door opener. The yellow LED on the sending sensor should glow steadily. The green LED on the receiving sensor should also glow steadily when properly aligned. If the green LED is flashing or off, adjust the sensor's position until it glows steadily. - Testing the Sensors:
With the garage door open, place an object (e.g., a box) in the path of the sensor beam. Attempt to close the garage door. The door should not close and should reverse if it starts to move. Remove the object and test again to ensure the door closes normally.
Figure 5: Proper alignment of the sending and receiving sensors.
Video 1: A visual showcase of the 820CB Garage Door Sensor and Bracket Kit components.
Operation
Once correctly installed and aligned, the safety sensors continuously monitor the garage door opening. The sending sensor emits an invisible infrared beam to the receiving sensor. If this beam is interrupted while the garage door is closing, the garage door opener will automatically reverse the door's direction or prevent it from closing, ensuring safety.
- Yellow LED (Sending Sensor): Should glow steadily, indicating power and beam emission.
- Green LED (Receiving Sensor): Should glow steadily when the beam is properly received. If it flashes or is off, the sensors are misaligned or obstructed.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Garage door does not close, or reverses immediately. | Sensors are misaligned or obstructed. | Check for obstructions in the beam path. Adjust sensor alignment until both LEDs glow steadily. |
| Green LED on receiving sensor is off or flashing. | Misalignment, obstruction, or wiring issue. | Ensure sensors are aligned and free of obstructions. Check wiring connections for security and correct polarity. |
| No LEDs are lit on either sensor. | No power to sensors or wiring issue. | Verify power to the garage door opener. Check all wiring connections from sensors to the opener for breaks or loose connections. |
| Sensors are installed but door still closes on obstructions. | Sensors are faulty or improperly installed. | Re-check installation steps carefully. If issues persist, contact customer support for assistance. |
Specifications
- Model: 820CB
- Manufacturer: DDcafor
- Part Number: 820CB&Brackets
- Item Weight: 8 ounces
- Product Dimensions: 1.75 x 1.35 x 1.25 inches
- Material: ABS
- Cord Length: 13.2 Inches
- Included Components: Safety Sensor Kit (with bracket)
- Batteries Required: No
Figure 6: Detailed dimensions of the sensor components.
Warranty and Support
For any questions regarding your DDcafor 820CB Garage Door Safety Sensor Kit, please contact the manufacturer or seller for assistance. Refer to your purchase documentation for specific warranty details.
