Introduction
This manual provides essential instructions for the safe and effective use of your GreatPowerDirect AC Adapter, model GPD0806150306. This adapter is specifically designed for compatibility with ProForm XP 210U Bike Exerciser models 83121941 and 831219412. Please read this manual thoroughly before use and retain it for future reference.
The AC adapter converts alternating current (AC) from a wall outlet into direct current (DC) required by your exercise bike, ensuring proper power delivery and protection against electrical issues.
Important Safety Information
To prevent injury or damage to your equipment, always observe the following safety precautions:
- Use the adapter only with compatible devices as specified in this manual.
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the adapter to severe impact.
- Do not attempt to open, modify, or repair the adapter. Refer all servicing to qualified personnel.
- Ensure the power outlet is easily accessible and unplug the adapter during electrical storms or when unused for long periods.
- Keep the adapter away from children.
Setup Instructions
Follow these steps to properly connect your AC adapter to the ProForm XP 210U Bike Exerciser:
- Verify Compatibility: Confirm that your exercise bike is a ProForm XP 210U (models 83121941 or 831219412). This adapter is specifically designed for these models.
- Inspect the Adapter: Before connecting, visually inspect the AC adapter and its cable for any signs of damage, such as frayed wires or bent pins on the barrel connector. Do not use if damaged.
- Connect to Exercise Bike: Locate the power input port on your ProForm XP 210U Bike Exerciser. Carefully insert the barrel connector of the AC adapter into this port. Ensure a snug fit.
- Connect to Power Outlet: Plug the AC adapter's two-prong plug into a standard 100-240VAC, 50/60Hz wall outlet.
- Power On: Once connected, your exercise bike should receive power. Refer to your exercise bike's manual for specific power-on procedures.

Image 1: The GreatPowerDirect AC Adapter, showing the main unit with a US-style two-prong plug and the attached power cord terminating in a barrel connector. This image illustrates the overall design of the adapter.
Operating Instructions
The GreatPowerDirect AC Adapter operates automatically once connected. It provides a stable DC power supply to your ProForm XP 210U Bike Exerciser.
- Continuous Power: The adapter is designed for continuous operation when connected to a power source and the exercise bike.
- Power Disconnection: To disconnect power, first turn off your exercise bike (if it has a power switch), then unplug the adapter from the wall outlet. Finally, disconnect the barrel connector from the exercise bike.
- Environmental Conditions: Operate the adapter in a well-ventilated area, away from direct sunlight, heat sources, and excessive humidity.

Image 2: A different angle of the GreatPowerDirect AC Adapter, highlighting the coiled power cord and the barrel connector. This view emphasizes the cable management and the connector type.
Care and Maintenance
Proper care ensures the longevity and reliable performance 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, cable, and connectors for any signs of wear or damage. If damage is observed, discontinue use and replace the adapter.
Troubleshooting
If you experience issues with your AC adapter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Exercise bike does not power on. |
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| Adapter feels excessively hot. |
|
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If the problem persists after attempting these solutions, contact customer support or a qualified technician.
Product Specifications
- Brand: GreatPowerDirect
- Model Number: GPD0806150306
- Compatibility: ProForm XP 210U Bike Exerciser (Models 83121941 / 831219412)
- Input Voltage: 100-240VAC, 50/60Hz (Worldwide Use)
- Output: DC (Specific voltage/amperage not provided in source, but implied by compatibility)
- Connector Type: Barrel Connector
- Safety Standards: FCC, CE, RoHS compliant
- Protection Features: Short-circuit Protection, Over Voltage Protection, Over Heat Protection
- Item Weight: Approximately 8 ounces (227 grams)
Warranty and Support
For information regarding warranty coverage, product support, or to purchase replacement parts, please contact GreatPowerDirect customer service. Refer to the product packaging or the seller's website for the most current contact information.
When contacting support, please have your product model number (GPD0806150306) and the specific issue ready.