Problem description
The vehicle speed controller makes an abnormal sound and the vehicle cannot be driven.
User self-check: causes and solutions
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Cause Analysis
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Solution
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Motor failure
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1. Check if the power cord of the electric scooter is well connected and make sure there are no disconnected or damaged wires.
2. Check if the motor of the electric scooter has any odor or heat.
3. Check if the battery of the electric scooter is fully charged.
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If you are unsure how to perform these checks, it is best to contact a professional e-scooter repairer for help and guidance.
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Battery failure
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1. Check if the battery of the electric scooter is charged. If the battery is not fully charged, you can try to charge it to see if it can solve the problem.
2. Check if the charger of the electric scooter is working properly to ensure that the battery can be charged correctly.
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Controller failure
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Check the e-scooter controller for any visible damage or burnt parts
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Customer support
If you still have questions, please contact GKB customer service: service_aftersale@geekbuying.com
For Engineers
Cause Analysis
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Turn the motor on or off
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If the motor is stuck when the power is turned off, you need to replace the motor.
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Brake lever switch failure
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Throttle failure
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Battery pack failure
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Controller failure
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Wiring or connector failure
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Charging system problems
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Solution
Check the motor
Check for burnt or melted wires or wire connections attached to the motor. Burnt or melted wires or wire connections indicate that the motor has overheated and may have caused the plastic insulation to melt from the motor’s electromagnet copper wire windings.
If the insulation on the copper windings melts, they will short out and cause the motor to not run or run slowly. Shorted motor windings can also burn out the speed controller because the speed controller has too much resistance, causing it to overwork and overheat.
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