1. Introduction
This manual provides essential information for the safe and effective use of your GT POWER AC Power Adapter. This adapter is specifically designed to provide power to Nordictrack Commercial VR25 Elite and VR25 Exercise Bikes. Please read this manual thoroughly before installation and operation to ensure proper functionality and safety.
The power adapter features built-in circuit protection, including Over Voltage Protection (OVP), Over Current Protection (OCP), and Short Circuit Protection (SCP), to safeguard your equipment.
2. Product Overview
The GT POWER AC Power Adapter consists of a main adapter unit and an integrated heavy-duty power cable. It is designed for reliable power delivery to compatible exercise equipment.

Figure 2.1: GT POWER AC Power Adapter unit with integrated power cable.

Figure 2.2: Detailed view of the AC Power Adapter, showing the plug and output cable.
The power cable is approximately 6.5 feet (79 inches) long, providing ample reach for connecting to your exercise bike and a power outlet.

Figure 2.3: The heavy-duty power cable, coiled for storage.
2.1 Compatible Models
This AC Power Adapter is compatible with the following Nordictrack exercise bike models:
- Nordictrack Commercial VR25 Elite
- Nordictrack VR25
- NTEX89918NB
- NTEX89918.4
- NTEX89914.0 (7” Smart HD Touchscreen Exercise Bike)

Figure 2.4: Examples of compatible Nordictrack exercise bikes: Commercial VR25 Elite and VR25.
3. Safety Information
Please observe the following safety precautions to prevent injury or damage to the product and connected equipment:
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Do not attempt to open or modify the adapter. There are no user-serviceable parts inside.
- Ensure the power outlet is easily accessible and located near the equipment.
- Avoid placing the power cord in high-traffic areas where it could be tripped over or damaged.
- Disconnect the adapter from the power outlet when not in use for extended periods.
- Use only with compatible Nordictrack exercise bikes as specified.
4. Setup Instructions
Follow these steps to connect your GT POWER AC Power Adapter to your Nordictrack exercise bike:
- Unpack the Adapter: Carefully remove the AC Power Adapter from its packaging.
- Locate the Power Port: Identify the power input port on your Nordictrack Commercial VR25 Elite or VR25 Exercise Bike. Refer to your exercise bike's user manual for the exact location if needed.
- Connect to Exercise Bike: Insert the DC output connector of the GT POWER adapter firmly into the power input port on your exercise bike.
- Connect to Power Outlet: Plug the AC input plug of the adapter into a standard 110-volt AC wall outlet. Ensure the outlet is functional and properly grounded.
- Verify Connection: Confirm that both connections are secure. The exercise bike should now be ready for operation.
Important: Ensure the power adapter is fully inserted into both the exercise bike and the wall outlet before attempting to power on the equipment.
5. Operating Instructions
Once the GT POWER AC Power Adapter is correctly connected to your Nordictrack exercise bike and a power outlet, the bike is ready for use. Simply follow the operating instructions provided with your exercise bike to power it on and begin your workout.
The adapter provides continuous power to the exercise bike. There are no additional controls on the adapter itself.
6. Maintenance
To ensure the longevity and proper functioning of your AC Power Adapter, follow these simple maintenance guidelines:
- Cleaning: Disconnect the adapter from the power outlet and the exercise bike before cleaning. Use a soft, dry cloth to wipe the exterior of the adapter. 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 moisture. Avoid tightly coiling the cable to prevent damage.
- Inspection: Periodically inspect the power cord and adapter for any signs of damage, such as cuts, frayed wires, or bent prongs. If any damage is observed, discontinue use immediately and replace the adapter.
7. Troubleshooting
If you encounter issues with your AC Power Adapter, refer to the following troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Exercise bike does not power on. |
|
|
| Adapter feels unusually hot. |
|
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If the problem persists after attempting these solutions, please contact customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | GT POWER |
| Model Number | 108 |
| Input Voltage | 110 Volts (AC) |
| Plug Format | Type A |
| Number of Outlets | 1 |
| Cable Length | 6.5 feet (approximately 79 inches) |
| Protection Features | OVP (Over Voltage Protection), OCP (Over Current Protection), SCP (Short Circuit Protection) |
9. Warranty and Support
Your GT POWER AC Power Adapter comes with a One Year Warranty from the date of purchase. Additionally, a 30-Day Money Back Guarantee is offered.
For warranty claims, technical support, or any questions regarding your product, please contact GT POWER customer service through the retailer where the product was purchased or visit the official GT POWER website for contact information.
Please retain your proof of purchase for warranty purposes.





