Introduction
This manual provides detailed instructions for the installation and operation of the LiftMaster 050DCTBFMC Receiver Logic Board. This board is a replacement component designed for various LiftMaster and Chamberlain DC Belt Drive and Chain Drive Garage Door Openers manufactured between 2011 and 2022, featuring integrated Bluetooth technology and a yellow learn button.
It is crucial to verify compatibility with your specific garage door opener model before proceeding with installation. Refer to your opener's owner's manual or replacement parts diagram for accurate information.
Compatibility
The 050DCTBFMC logic board is compatible with LiftMaster and Chamberlain DC Belt Drive and Chain Drive Garage Door Openers that meet the following criteria:
- Manufactured between 2011 and 2022.
- Equipped with integrated Bluetooth technology.
- Feature a yellow learn button.
This board is also known by the following part numbers: 050DCTWF, 041D8169, 050DCTBMC, 1D8169‑2, 050DCTB, 001D8214, 1D8169‑1.
Safety Information
WARNING: Disconnect all electrical power to the garage door opener before attempting any installation or repair. Failure to do so may result in serious injury or death.
- Always wear appropriate safety gear, including safety glasses.
- Ensure the work area is well-lit and clear of obstructions.
- Handle electronic components with care to avoid static discharge.
- Consider installing a surge protector for your garage door opener to prevent damage from electrical surges.
Installation Guide
This section outlines the steps for replacing the logic board. It is recommended to take photos of existing wiring before disconnection for easier reassembly.
- Disconnect Power: Unplug the garage door opener from the electrical outlet or turn off the circuit breaker supplying power to the unit.
- Access the Control Panel: Open the cover of your garage door opener to expose the existing logic board. This usually involves removing a few screws.
- Document Wiring: Carefully note or photograph the connections of all wires to the existing logic board. Pay close attention to the color and position of each wire.
- Disconnect Wires: Gently disconnect all wires and connectors from the old logic board.
- Remove Old Board: Unscrew or unclip the old logic board from its mounting points within the opener housing.
- Install New Board: Position the new LiftMaster 050DCTBFMC logic board in the same location and secure it with the original screws or clips.
- Reconnect Wires: Refer to your documented wiring and carefully reconnect all wires and connectors to the new logic board. Ensure all connections are secure.
- Close Control Panel: Replace the cover of the garage door opener.
- Restore Power: Plug the garage door opener back into the electrical outlet or turn on the circuit breaker.
- Programming Remotes and Devices: After installation, you will need to reprogram your garage door remotes, keypads, and any MyQ-enabled devices to the new logic board. Refer to your garage door opener's owner's manual for specific programming instructions, typically involving the "learn" button on the logic board.

Image: The LiftMaster 050DCTBFMC Receiver Logic Board, showing various electronic components, connectors, and a yellow wire. This board is a direct replacement for compatible garage door openers.
Operating Instructions
Once the new logic board is installed and all devices are reprogrammed, your garage door opener should function as before. The integrated Bluetooth technology allows for connectivity with compatible smart devices and MyQ systems.
- Remote Control Operation: Use your paired remote controls to open and close the garage door.
- Keypad Operation: Enter your programmed code on the external keypad to operate the door.
- MyQ App Control: If your opener is connected to the MyQ system, use the MyQ app on your smartphone to monitor and control your garage door remotely.
- Safety Sensors: Ensure the safety reversal sensors are properly aligned and functioning. The door will not close if the sensors are obstructed or misaligned.
Maintenance
The LiftMaster 050DCTBFMC logic board is designed for durability and requires minimal maintenance. However, following these general guidelines can help prolong its lifespan and ensure reliable operation:
- Keep Dry: Ensure the garage door opener housing remains sealed and protected from moisture and extreme temperatures.
- Surge Protection: It is highly recommended to connect your garage door opener to a surge protector to safeguard the logic board from power fluctuations and lightning strikes.
- Regular Checks: Periodically check all wiring connections to ensure they remain secure.
Troubleshooting
If you encounter issues after installing the new logic board, consider the following troubleshooting steps:
- No Power:
- Check if the opener is plugged in securely.
- Verify the circuit breaker has not tripped.
- Ensure all power connections to the logic board are firm.
- Remotes/Keypads Not Working:
- Confirm that all remotes and keypads have been reprogrammed to the new logic board. Refer to your opener's manual for programming steps.
- Check remote battery levels.
- Garage Door Not Closing:
- Inspect the safety reversal sensors. Ensure they are clean, aligned, and unobstructed. The indicator lights on the sensors should be on and steady.
- Check for any physical obstructions in the door's path.
- Bluetooth/MyQ Connectivity Issues:
- Ensure your MyQ gateway (if applicable) is properly connected to your home Wi-Fi network.
- Follow the MyQ app's instructions for adding a new device or troubleshooting connectivity.
If problems persist after attempting these steps, contact LiftMaster customer support or a qualified garage door technician.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 050DCTBFMC |
| Compatibility | LiftMaster/Chamberlain DC Belt/Chain Drive Openers (2011-2022) with yellow learn button and Bluetooth |
| Bluetooth Enabled | Yes |
| Dimensions | 6 x 3 x 1 inches |
| Item Weight | 10.8 ounces |
| Manufacturer | LiftMaster |
| Alternative Part Numbers | 050DCTWF, 041D8169, 050DCTBMC, 1D8169‑2, 050DCTB, 001D8214, 1D8169‑1 |
Warranty Information
For detailed warranty information regarding the LiftMaster 050DCTBFMC Receiver Logic Board, please refer to the official LiftMaster website or the documentation included with your original garage door opener. Warranty terms and conditions may vary.
Customer Support
If you require further assistance, technical support, or have questions not covered in this manual, please contact LiftMaster customer service directly. Visit the official LiftMaster website for contact information and additional resources.
You can also visit the LiftMaster Store on Amazon for more products and information.





