Problem description
The throttle indicator light on the electric scooter display is not lit and has no response.
User self-check: causes and solutions
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Cause Analysis
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Solution
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Dead battery
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Check if the battery of the electric scooter needs to be charged, and charge it in time if necessary.
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Battery connection cable failure
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If the battery is fully charged, there may be a problem with the connection cable. Check whether the connection cable is loose or damaged, and repair or replace it in time.
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If the above methods cannot solve the problem, it is recommended to find a professional maintenance personnel for inspection.
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Customer support
If you still have questions, please contact GKB customer service: service_aftersale@geekbuying.com
For engineers:
Cause analysis
Power switch failure
Check whether the switch is malfunctioning. Turn on the switch and use a multimeter to measure whether the circuit is powered (you can also short-circuit the positive and negative poles of the switch to confirm whether the battery is powered).
The fuse or circuit breaker is blown or malfunctioning
Disassemble the battery pack and check whether the fuse at the output or output terminal is burnt or melted.
Battery harness
Disassemble the battery pack wiring harness to see if the wires are pressed or broken, causing the circuit to be disconnected.
Connector failure
Check whether the waterproof interface pin is skewed, whether the wiring harness is broken or burnt.
Faulty throttle cable or connector
Check if the throttle cable is disconnected or if the motor is working in the test (push mode or pedal assist mode).
Battery pack over-discharge
The voltage level is not high enough to illuminate the first battery level indicator.
Solution
Make sure the power switch is on
Make sure the key switch or power switch is in the on position.
Test the voltage at the controller battery connector
Testing the voltage at the controller battery connector is the easiest way to narrow down the problem. With the power or key switch on, test the voltage at the controller battery connector. If there is voltage at the controller battery connector, then everything between the controller and the battery pack should be OK.
However, the battery pack may not have enough voltage to illuminate the throttle’s first battery charge indicator, and the voltage should be checked to see if it is above a zero charge state.
Test the power switch
Use a multimeter to test the continuity of the power switch or key switch terminals.
Check or test fuses or circuit breakers
If the scooter uses a fuse, check to see if the fuse is burnt out. You may need to remove the fuse from the scooter and hold it up to a light source to determine if it is burnt out. For scooters that use a circuit breaker, press or flip the breaker to see if it resets. Use a multimeter to test for continuity across the fuse or circuit breaker terminals.
