Common EV Charging station Problems & How to Fix Them?

Electric vehicle (EV) charging stations, while increasingly reliable, sometimes experience issues that may affect their performance or availability. Here are some common problems that can arise at electric vehicle charging stations and how to fix them: 

Common problems with charging at the charging station

○ Does not display the “gun inserted” status

  • 1. Please confirm that the vehicle is turned off and the charging gun is connected in place;
  • 2. Please check whether the emergency stop button of the device is pressed. If it is pressed, please rotate it in the direction indicated by the emergency stop button. When the emergency stop button pops up, it means that the device has returned to normal. Please try to re-insert the gun and start charging. If charging still cannot be started, it may be an equipment failure. Please replace it with other charging equipment, or contact customer service.

○ Failed to start charging

  • 1. Please confirm that the vehicle is turned off and the charging gun is connected in place;
  • 2. After the startup fails, plug and unplug the charging gun and scan the code to start again;
  • 3. If the startup still fails, or the gun jumps multiple times, it is recommended that you change to other devices for charging, or consult after-sales customer service.
ecar charging points
ecar charging points

○ Current is inconsistent

During the AC charging process of electric vehicles, the public account displays the AC input current, which is 220V, about 30A (15A), while the current displayed in the car is 20A (10A). The reason for the inconsistent display is that the DC current displayed in the car is It is the result of the voltage boosting to about 300V, and the current will become smaller. But because the power remains unchanged, you only need to pay attention to whether the power displayed in the car and on the official account are consistent.

○ How to set the SOC to terminate when it reaches the target value

On the startup page through the bluetooth EV charging APP, when using DC fast charging, after setting the SOC target value, charging will automatically stop when the SOC reaches the corresponding target value.

○ The battery is inaccurate

  • 1. Charging of electric vehicles is related to the charger, battery, and battery heating and cooling system.
  • 2. When electric vehicles are AC charged, they use an on-board charger, so the rectification loss of the on-board charger, the charging loss of the tram, and the loss of the heat dissipation and heating system of the tram will occur during the charging process. The impact of these three parts will lead to public The charging capacity displayed in the number is greater than the battery charging capacity.
  • 3. When an electric vehicle is charging in DC, the charger is located in the charging station, so the system will bear the power loss of the entire charging process. However, it does not rule out that when other brands of charging stations are used, the charging station does not bear the power loss, and the DC charging power and battery There will be a difference in power

○ Can’t stop charging

When the device goes off-grid due to power outage or poor signal, the charging order will be suspended. Charging cannot be ended during the suspension period. You can just pull out the gun and drive away. After the device returns to normal, the order will automatically end and the order fee will be billed according to your actual charging power.

electric car charger
electric car charger

SINO after-sales service

  1. The warranty period of the contract equipment (including supporting software) is 24 months from the date of shipment, and third-party accident insurance is provided during the maintenance period. The warranty services include on-site upgrade of software, on-site replacement of faulty parts, and on-site maintenance of equipment. There are no additional charges for services such as maintenance and telephone technical support.
  1. During the warranty period, our company will upgrade and modify the equipment free of charge according to the latest released and implemented national standards.
  1. After-sales service response time: When the equipment fails, we will respond to the maintenance requirements put forward by the on-site party within 24 hours. During the warranty period, if there is a quality problem with the equipment, damaged parts will be replaced free of charge within a maximum of 72 hours. If the equipment cannot be repaired, it will need to be replaced with new equipment.
  1. After the warranty period and during the equipment life cycle, the supply of spare parts is guaranteed to meet on-site service response requirements. If product damage occurs, our company will promptly provide repair parts at the lowest market price.
  1. During the entire life cycle of the equipment, if the charging station fails due to design defects of our company, our company will provide a complete defect elimination plan and provide free upgrades.

In conclusion, problems at electric vehicle charging stations do not necessarily cause alarm. By understanding common problems and being equipped with the appropriate solutions, you can keep your charging infrastructure efficient and reliable. Whether it’s a software glitch, hardware failure or network connectivity issue, a proactive approach and basic troubleshooting can often restore charging station performance.

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“Better Charging for Better Life”

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ZHUHAI SINO ENERGY TECHNOLOGY CO., LTD.

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