Wiktor Wise
Electric scooters are a fun, eco-friendly, and cost-effective mode of transportation. However, they can sometimes run into issues that cause them to not move, even when turned on. This can be due to a variety of reasons, such as a depleted or faulty battery, motor problems, throttle issues, brake lever malfunction, or a faulty BMS. Troubleshooting guides are available to help identify and resolve these issues, but for more complex problems, it is recommended to consult a professional or refer to the user manual.
| Characteristics | Values |
|---|---|
| Depleted or faulty battery | Check the battery and recharge if needed. If the battery is old, it may need to be replaced. |
| Motor issues | Inspect the motor for damage, loose connections, or worn-out brushes. Consult the user manual or seek professional help for motor problems. |
| Throttle issues | Ensure the throttle is securely plugged into the controller. Check if the magnet has fallen out of place. |
| Brake lever switch | Check if the scooter mistakenly senses that you're pressing the brake. Release the brake lever switch if it's stuck. |
| Circuit breaker | If your scooter shuts off or cuts out while riding, the circuit breaker may have been tripped. |
| Fuse | Check if the fuse has flipped or blown. Replace the fuse if necessary. |
| Kill switch | Ensure the kill switch is off before checking for a low or dead battery. |
| Speed controller | A broken speed controller can prevent the scooter from accelerating properly. |
| Flat tyre | Pneumatic or air-filled tyres can cause issues if not maintained properly. |
| Charging port | Check if the charging port is malfunctioning and tighten the connections if they seem loose. |
| Extreme temperatures | Cold temperatures can affect battery performance. |
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What You'll Learn
A depleted or faulty battery
You can test the battery using a voltmeter, which will tell you its status and charge. If the battery is faulty, it may be because it has been overcharged. Overcharging can cause irreparable damage to the battery and reduce its lifespan. Lithium-ion batteries should not be kept at 100% capacity for too long, and they should not be fully depleted before recharging. Ideally, lithium batteries should be charged when they are at least 10% charged.
If your scooter's battery is not fully depleted, it may not be charging properly. If the red light on the charger stays on for longer than the charging time, or the green light stays on, the charger may be faulty. You can check this by testing the charger on another electric scooter of the same model. If the charger is working, the battery pack may be defective and need to be replaced.
If your scooter is not moving, it may also be due to a tripped circuit breaker. If your scooter shuts off or cuts out while riding, check if the circuit breaker has been tripped. You should also check the fuse, as this may be flipped or blown. If the fuse is flipped, switch it back to the "on" position. If it is blown, you will need to replace it.
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A faulty throttle
There are several ways to identify whether the issue lies with the throttle. Firstly, you can test the throttle itself by twisting, turning, or pushing it, depending on the type of throttle. If the speed display and scooter lights do not turn on, the problem lies with the throttle and/or the controller. You can then check the controller to confirm which one is faulty.
Another way to test the throttle is to use a multimeter to measure its output voltage while engaging the throttle. If the voltage does not change, or if it fluctuates erratically, the throttle may need to be replaced.
You can also test the scooter's fuse by turning off the scooter and pulling out the fuse. Then, connect a C positive multimeter to the throttle's red wire and attach the black wire to the DC ground. Put the fuse back inside the scooter and turn it on. If the scooter and motor start successfully, the issue lies with the throttle.
If the throttle is faulty, it will need to be replaced. It is recommended to have a professional handle this repair.
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A blown fuse
Electric scooters have a range of fuse types, including GMA, AGC, AGU, ATO/ATC, and MAXI, and they typically have a 20 to 40 Amp range. A fuse may blow due to electrical overloads, short circuits, or faulty components that need repair or replacement. For example, a motor that draws too much power or a malfunctioning battery can cause fuse issues.
To repair a blown fuse, first locate the fuse by checking the user manual, which should provide a detailed diagram of the scooter's layout. Fuses are usually located near the battery compartment, under the deck or footplate, or in line with the charging port. Once located, turn off the scooter and remove any screws or latches to access the fuse. If the fuse is blown or damaged, replace it with a new one of the same specifications.
It is important to routinely inspect the scooter's fuse and other electrical components to maintain the scooter's performance and longevity. If you are uncomfortable replacing the fuse yourself, it is recommended to take the scooter to a mechanic to have it replaced.
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A broken speed controller
If your electric scooter is not moving, it could be due to a broken speed controller. The speed controller is an important part of your electric scooter that manages your speed and keeps it within a certain range. It is prone to damage if you do not take proper care of your scooter.
To check if your speed controller is defective, first, dismantle it and look for any burned or melted wires. If you find any, then the speed controller is likely faulty. In this case, you should tighten or replace the affected wires, then reassemble and test the scooter to see if it accelerates as it should.
The speed controller may also be defective if the motor runs constantly. This is usually caused by a faulty or old worn-out battery pack. The speed controller, which is wired between the battery and the motor, has a low-voltage cutoff function. When the battery voltage drops below a certain threshold, the speed controller is designed to cut power to the motor to protect it from damage. However, if the speed controller malfunctions, it may fail to cut power, resulting in the motor running continuously.
In some cases, the speed controller may fail due to overheating or power surges, causing components to burn out or become discoloured. Large capacitors in the controller can also fail over time, especially in hot climates, leading to bulging or leaking. If you suspect this type of failure, use a multimeter to test for continuity between the controller's motor phase wires (output voltage from the controller to the motor). If there is no continuity, your controller is likely fried, and you will need to replace it.
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A stuck brake lever switch
If your electric scooter is not moving, one possible reason is a stuck brake lever switch. The brake lever switch is a safety feature that cuts power to the electric motor when it senses that you are pressing the brake. However, this switch can sometimes malfunction and get stuck, preventing the scooter from moving.
To check if the brake lever switch is stuck, locate the small button under the brake lever. This button is the brake lever switch. Try pressing it with your finger to release it. If the button feels stuck or doesn't seem to be responding, it may be malfunctioning.
In some cases, the brake lever switch may be stuck due to a faulty or misaligned brake lever. Over time, the brake lever can become loose or adjust to a position where it constantly activates the switch. Adjusting the brake lever or replacing the sensor can often fix this issue.
Additionally, it's important to inspect the scooter for any visible signs of damage, especially around the handlebars and the folding mechanism. Wires can become pinched or disconnected in these areas, affecting the brake lever switch's functionality. Ensure that all wires are securely connected and undamaged.
If releasing the stuck brake lever switch enables the scooter to move again, the issue was likely temporary. However, if the switch frequently gets stuck, consider adjusting the brake lever or consulting a professional to replace the sensor. Regular maintenance and inspections can help prevent future issues with the brake lever switch and other components of your electric scooter.
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Frequently asked questions
A depleted or faulty battery is the most common reason for this issue. Check that your battery is properly connected and charged. If the battery is fine, the charging port might be malfunctioning. Try tightening the charging port connections if they seem loose. If the battery is old or has been exposed to extreme temperatures, it may not hold a charge effectively and will need to be replaced.
Motor issues could be the reason. Inspect the motor for any visible damage, loose connections, damaged wires, or worn-out brushes. If you're uncertain about motor-related issues, consult the user manual or seek professional assistance.
Yes, there are a few other potential causes. Your electric scooter may have mistakenly sensed that you were pressing the brake, which cuts power to the electric motor. Check under the brake lever for a small button (the brake lever switch) and press it with your finger to release it if it's stuck. If this solves the issue, you may need to adjust the brake lever or replace the sensor. Alternatively, the throttle may be faulty or defective. Check that the throttle is securely plugged into the controller and open the throttle assembly to check if the magnet has fallen out of place or shifted.
