Introduction
This manual provides essential information for the installation, operation, maintenance, and troubleshooting of your MACWHeeL KD21C E-bike LCD Display. Please read this manual thoroughly before using the product to ensure safe and efficient operation.
Setup and Installation
The KD21C LCD Display is designed for electric bicycles and is compatible with 24V, 36V, and 48V power systems. As this is a customized product, specific compatibility with your e-bike's controller and motor is crucial. It is highly recommended to contact your seller with your e-bike's specifications to confirm compatibility and receive any specific installation guidance before proceeding.
Physical Installation
- Mounting the Display: Securely attach the display unit to your e-bike's handlebars using the integrated mounting ring. Ensure it is positioned for optimal visibility and easy access to buttons while riding.
- Connecting the Cable: Connect the display's cable to the corresponding port on your e-bike's controller or wiring harness. Ensure the connector is fully seated and secure. The display features a distinct green connector for easy identification.
Operating Instructions
The KD21C display provides essential information and control for your e-bike system. It typically features a power button and two control buttons (usually '+' and '-') for navigation and adjustments.
Basic Functions
- Power On/Off: Press and hold the power button (usually marked with a circle and vertical line) to turn the display on or off.
- Adjust Assist Level: Use the '+' and '-' buttons to increase or decrease the pedal assist level.
- Cycle Display Modes: Short press the power button (or another designated button, if available) to cycle through different information displays such as speed, distance, battery level, etc.
- Access Settings: A long press of the '+' or '-' button, or a combination of buttons, may grant access to advanced settings. Refer to your e-bike's specific controller manual for detailed instructions on accessing and adjusting parameters.
Maintenance and Care
Proper maintenance ensures the longevity and optimal performance of your KD21C display.
- Cleaning: Use a soft, damp cloth to clean the display screen and casing. Avoid abrasive cleaners, solvents, or spraying water directly onto the unit.
- Environmental Protection: While designed for outdoor use, avoid prolonged exposure to direct sunlight, heavy rain, or extreme temperatures when not in use.
- Storage: When storing your e-bike for extended periods, especially in cold conditions, ensure the display is kept within the recommended storage temperature range of -30â to 70â.
- Cable Inspection: Periodically check the display cable and connector for any signs of wear, damage, or corrosion. Ensure connections remain secure.
Troubleshooting
If you encounter issues with your KD21C display, refer to the following common problems and solutions:
- Display Not Turning On:
- Check if the e-bike battery is charged and properly connected.
- Ensure the display cable is securely connected to the controller.
- Verify that the power button is being pressed correctly (often a long press).
- Incorrect Readings (Speed, Distance):
- This may indicate an issue with the speed sensor or its connection. Check the sensor for damage or misalignment.
- Ensure the wheel size setting in the display's parameters (if accessible) matches your e-bike's wheel size.
- Display Shows Error Code:
- Error codes typically correspond to specific system faults. Consult your e-bike's main controller manual or contact the seller for a list of error codes and their meanings.
- Display Screen Issues (e.g., Fading, Pixels):
- Ensure the display is operating within its specified working temperature range (-20â to 60â).
- If the issue persists, it may indicate a hardware fault.
If troubleshooting steps do not resolve the issue, please contact your seller for further assistance.
Specifications
| Feature | Specification |
|---|---|
| Model | KD21C |
| Type | LCD Display |
| Brand Name | KEY-DISP (MACWHeeL) |
| Power Supply | 24V/36V/48V |
| Rated Working Current | 10mA |
| Maximum Working Current | 30mA |
| Off-state Leakage Current | <1ΞA |
| Working Temperature | -20â ~ 60â |
| Storage Temperature | -30â ~ 70â |
| Origin | Mainland China |
Warranty and Support
For any questions, problems, or support needs regarding your KD21C display, please contact your seller directly. They are best equipped to provide assistance tailored to your specific purchase and e-bike configuration.
Product Issues
If you receive a defective or damaged product, or if the product itself has a fault, please contact the seller within 15 days of receipt. It is recommended to take photos or videos of any defects to aid in the resolution process. Refunds for product-related issues are typically processed, provided the returned items remain in the same condition as received.
Fast Delivery & Refunds for Issues
The seller offers guarantees for fast delivery and refunds for specific issues:
- Refund if package is lost.
- Refund if items are damaged.
User Tips
- Compatibility Check: Always double-check the display's compatibility with your e-bike's voltage (24V/36V/48V) and controller system before purchase and installation. Since this is a customized product, direct communication with the seller about your e-bike's specifications is highly recommended.
- Monitor Battery Level: Pay attention to the battery indicator on the display to avoid unexpected power loss during your ride.
- Protect from Elements: While durable, protecting your display from heavy rain and direct, prolonged sunlight can extend its lifespan and maintain screen clarity.