1. Introduction
This manual provides essential information for the safe and efficient use of your SupplySource AC Adapter Power Supply. This adapter is specifically designed to provide power to NordicTrack VR21, NTEX76016.1, and 1216A Recumbent Bikes. Please read these instructions carefully before use and retain them for future reference.
2. Safety Information and Important Notices
WARNING: Failure to follow these safety instructions could result in fire, electric shock, or other injury or damage.
- Ensure the DC output and tip size of the AC adapter are compatible with your device before connecting. Incompatibility can cause damage.
- Do not expose the adapter to liquids, moisture, or extreme temperatures.
- If using the adapter for extended periods, ensure adequate ventilation and humidity. Avoid placing it on heat-sensitive surfaces or materials.
- The adapter is equipped with multiple safety features including protection against incorrect voltage, short circuits, and internal overheating. However, proper usage is still critical.
- Do not attempt to disassemble or repair the adapter. Refer all servicing to qualified personnel.
- Keep out of reach of children.

Image: The AC adapter highlighting built-in safety electronics such as overcharge, over voltage, short-circuit, over current, and over temperature protection, along with a 24-month warranty icon.
3. Package Contents
Verify that all items are present in the package:
- 1 x SupplySource AC Adapter Power Supply

Image: The SupplySource AC adapter unit with its integrated power cord, ready for connection.
4. Setup
- Verify Compatibility: Before connecting, confirm that the voltage and connector type of this AC adapter match the requirements of your NordicTrack VR21, NTEX76016.1, or 1216A Recumbent Bike. Refer to your bike's manual for specific power input requirements.
- Connect to Device: Insert the barrel connector of the AC adapter firmly into the power input port of your NordicTrack Recumbent Bike.
- Connect to Power Outlet: Plug the AC adapter's wall plug into a standard 100-240V AC electrical outlet. Ensure the outlet is easily accessible.
- Power On: Once connected, your recumbent bike should receive power. Follow your bike's instructions to power it on.
5. Operating Instructions
The SupplySource AC Adapter operates automatically once connected to a compatible device and power source. It provides a stable and efficient current to your NordicTrack Recumbent Bike.
- Ensure all connections are secure before and during operation.
- The adapter is designed for continuous use, but ensure it is placed in a well-ventilated area to prevent excessive heat buildup.
- Disconnect the adapter from the power outlet when not in use for extended periods.

Image: A close-up of the power cable, indicating its length and emphasizing features like leakage prevention, stable current, and strong power output.
6. Maintenance
Proper maintenance ensures the longevity and safe operation of your AC adapter:
- Cleaning: Disconnect the adapter from all power sources before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or solvents.
- Storage: When not in use, store the adapter in a cool, dry place, away from direct sunlight and extreme temperatures. Avoid tightly coiling the cable to prevent damage.
- Inspection: Periodically inspect the adapter and cable for any signs of damage, such as frayed wires, cracks, or loose connections. If damage is found, discontinue use immediately and contact support.
7. Troubleshooting
If you encounter issues with your AC adapter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not receiving power. |
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| Adapter feels excessively hot. |
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8. Specifications
| Brand | SupplySource |
| Input Voltage Range | 100-240V AC |
| Input Frequency | 50-60Hz |
| Cable Length | Approximately 4 feet (1.2 meters) |
| Connector Type | Barrel Connector |
| Material | Metal, Plastic |
| Certifications | CE, FCC |
| Compatible Devices | NordicTrack VR21, NTEX76016.1, 1216A Recumbent Bikes |

Image: A compact AC adapter held in a hand, illustrating its portable and convenient design for various use cases like business trips, travel, car, and office.
9. Warranty and Support
SupplySource products are manufactured with high-quality materials and undergo rigorous testing. This product includes a 24-month warranty.
- For questions, concerns, or warranty claims, please contact SupplySource customer support.
- Please have your product model and purchase information ready when contacting support.
Contact Information:
Refer to your purchase documentation or the seller's contact information on the platform where the product was purchased (e.g., Amazon seller "Power Supply Source").