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◆Battery Power Bar Settings
VOL represents voltage settings. Each bar represents a voltage
value. 5 bars voltage values must be entered one by one. For example,
VOL 1 is first bar voltage value, the default value is 31.5.
To set battery power bar, press the UP/DOWN button to increase or
decrease the number.
To store a changed setting and access the second bar, press the
MODE button.
By analogy, after 5 bars voltage values is entered , hold the MODE
button to confirm and return to the previous menu.
◆Assistance Level Settings
Assistance Level option
In assistance level settings, there are 8 modes to select: 0-3, 1-3, 0-
5, 1-5, 0-7, 1-7, 0-9, 1-9. The default value is 0-5.
To select the mode of assistance level, press the UP/DOWN button
to increase or decrease until the desired setting is displayed.
To store the changed setting and access the PAS ratio settings page,
press the MODE button.
Battery Power Bar Settings
1-5 flash
PAS Mode Option Interface
9
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Do you have a question about the KD21C and is the answer not in the manual?
Questions and answers
Speedometer stopped working.
Speedometer stopped working
To fix the speedometer on a Key-Disp KD21C, follow these steps:
1. Check Speed Sensor Settings – Ensure the speed sensor settings are correctly configured under the personalized parameter settings.
2. Verify Wheel Diameter – Ensure the correct wheel diameter is set in the display settings to ensure accurate speed readings.
3. Inspect Connections – Check the wiring connections between the display and controller to ensure they are secure and undamaged.
4. Look for Error Codes – If an error code appears, refer to the error code list and address any abnormalities.
5. Reset to Default Settings – If the issue persists, restore default settings under the display's settings menu.
6. Check Power Supply – Ensure the display and e-bike system are powered correctly.
7. Avoid Modifying System Parameters – Modifying system parameters incorrectly may cause display malfunctions.
If the problem continues, professional repair may be needed.
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How to erase total miles on display
The total miles (odometer reading) on the Key-Disp KD21C display cannot be erased. Only the trip distance can be reset to zero by holding the MODE button. The odometer will continue counting the total distance traveled.
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Quand j'allume le velo sur l'écran y a écrit P1 et 0000 avec le 0 qui clignote
How to reset to default settings
To reset the Key-Disp KD21C to default settings:
1. Hold both the UP and ON/OFF buttons for 2 seconds to access the selection interface.
2. Use the UP/DOWN buttons to choose “Y” (Yes) for recovering default settings.
3. Hold the ON/OFF button for 2 seconds to confirm.
4. The display will show DEF-00 and return to the startup page.
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I have error 24in my lcd
Error 24 on the Key-Disp KD21C LCD means "Motor Hall Signal Abnormality."
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I have error number 24 my bike is cuybike
Error number 24 for a Key-Disp KD21C bike means "Motor Hall Signal Abnormality."
This answer is automatically generated