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Throttle Level Enable/Disable
HF-y represents throttle level is enabled. HF-N represents throttle
level is disabled. The default value is N.
To change throttle level function, press the UP/DOWN button to
select Y or N.
To store a changed setting, press the MODE button and then
access Throttle Enable Settings page.
To return to previous menu, hold the MODE button for 2s.
◆System Settings
Delay time settings of battery power
DLY represents delay time of battery power settings. The default
value is 3s.
To change delay time settings, press the UP/DOWN button to select
delay time 3s, 6s, 12s.
To store a changed setting, press the MODE button and then access
the max speed limited.
Max speed limited
MAX SPD represents max speed limited settings. The default value is
40Km/h.
To change Max speed limited setting, press the UP/DOWN button to
set the max speed from 25Km/h to 40 Km/h.
To store a modified setting, press the MODE button and then access
Button PAS Settings.
Throttle Level Enable or Disable Interface
Delay Time of Battery Power Interface
13
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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.
This answer is automatically generated
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.
This answer is automatically generated
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."
This answer is automatically generated
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