Introduction
This manual provides instructions for the safe and effective use of your UpBright AC/DC Adapter. This power supply is designed to be compatible with various Sunny Health Fitness elliptical trainers and exercise bikes. Please read this manual thoroughly before use and retain it for future reference.
Compatible Models Include:
- Sunny Health & Fitness SF-B2883 Magnetic Upright Programmable Exercise Bike
- Sunny Health & Fitness SF-E3862 Circuit Zone Elliptical Trainer Machine
- Sunny Health & Fitness SF-E3865 Stride Elliptical Machine
- Sunny Health & Fitness SF-E3875 Motorized Elliptical Machine Trainer
- Sunny Health & Fitness SF-E3890 Programmable Elliptical Magnetic Cardio Power Trainer
- Sunny Health & Fitness SF-E3912, SF-E3912SMART Pre-Programmed Elliptical Trainer
- Sunny Health & Fitness SF-RB4850, SF-RB4850SMART Stationary Recumbent Bike
- Sunny Health & Fitness SF-E321006 Power Stride Advanced Elliptical Machine
- Sunny Health & Fitness SF-E320002, SF-E320001 Pre-Programmed Elliptical Trainer

Image: The UpBright AC Adapter showing the main unit and the barrel connector tip. The inset shows a close-up of the barrel connector, highlighting its design for secure fit.
Setup Instructions
- Verify Compatibility: Ensure your fitness equipment model is listed as compatible with this UpBright AC Adapter. Refer to the "Compatible Models" list in the Introduction section.
- Inspect the Adapter: Before connecting, visually inspect the AC adapter and its cable for any signs of damage, such as frayed wires or cracked casing. Do not use if damaged.
- Connect to Device: Locate the power input port on your Sunny Health Fitness equipment. Carefully insert the barrel connector of the UpBright AC Adapter into this port. Ensure a snug and secure fit.
- 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 and not overloaded.
- Power On: Once connected, you may power on your fitness equipment according to its specific operating instructions.

Image: A detailed view of the UpBright AC Adapter, emphasizing the barrel connector at the end of the cable, ready for connection to a device.
Operating Instructions
The UpBright AC Adapter is designed for straightforward operation. Once properly connected to your fitness equipment and a power outlet, it will supply the necessary power.
- Continuous Power: The adapter provides continuous power to your device when plugged in.
- Power Indicator: Some fitness equipment may have a power indicator light that illuminates when power is supplied. Refer to your equipment's manual for details.
- Disconnecting: To disconnect power, first turn off your fitness equipment, then unplug the AC adapter from the wall outlet, and finally disconnect the barrel connector from your equipment.

Image: A side profile of the UpBright AC Adapter, showing the compact design of the power brick and the coiled cable.
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 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 extreme temperatures. Avoid tightly coiling the cable to prevent damage.
- Cable Care: Do not bend, twist, or pinch the power cord excessively. Avoid placing heavy objects on the cord.
- Inspection: Periodically inspect the adapter and cable for any signs of wear or damage. Replace the adapter if any damage is observed.

Image: Another perspective of the UpBright AC Adapter, showcasing its robust construction and the connection point of the cable to the power brick.
Troubleshooting
If you encounter issues with your UpBright AC Adapter, consider the following steps:
- No Power to Device:
- Ensure the adapter is securely plugged into both the fitness equipment and the wall outlet.
- Check if the wall outlet is functional by plugging in another device.
- Verify that the fitness equipment itself is turned on and functioning correctly (refer to its own manual).
- Inspect the adapter cable for any visible damage.
- Intermittent Power:
- Ensure all connections are tight and not loose.
- Avoid bending or stressing the cable at the connector points.
- Adapter is Hot: It is normal for power adapters to become warm during operation. However, if the adapter is excessively hot to the touch or emits a burning smell, immediately unplug it from the wall outlet and discontinue use.
If troubleshooting steps do not resolve the issue, please contact UpBright customer support or consult your fitness equipment's manual for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Input Voltage | 100-240VAC, 50/60Hz (World Wide Input Voltage) |
| Output Protection | OVP (Over Voltage Output Protection), OCP (Over Current Output Protection), SCP (Short Circuit Output Protection) |
| Product Dimensions | 3 x 3 x 1 inches |
| Item Weight | 3 ounces |
| Color | Black |
| Connector Type | AC plug, Barrel Connector |
| Manufacturer | UpBright |
Warranty Information
UpBright offers the following warranty for this product:
- Refund Policy: 30 days refund period from the date of purchase.
- Exchange Policy: 24 months exchange period from the date of purchase.
Please retain your proof of purchase for warranty claims. For detailed terms and conditions, refer to the official UpBright warranty documentation or contact customer support.

Image: This image displays different international outlet adapters (AU, EU, UK) that may be included with international orders, alongside a sample UpBright Limited Warranty Certificate, indicating the product's warranty coverage.
Customer Support
For any questions, technical assistance, or warranty claims, please contact UpBright customer support. Refer to the contact information provided with your product packaging or visit the official UpBright website for support details.
Online Resources: For additional information and support, you may visit the UpBright Store on Amazon.
