Why does the electric vehicle charger show a red light but make no sound?
3 Answers
This situation may be caused by a faulty charger that prevents charging, but it could also be due to a malfunction in the electric vehicle's battery. Below is some relevant information about electric vehicles: 1. Introduction: Electric vehicles first appeared on city streets in the 1880s, starting with trams, which were invented in 1881 by the German Werner von Siemens. At that time, trams had to run on fixed tracks because they relied on steel rails to form the power supply circuit, making them inconvenient in congested areas. 2. Classification: Electric vehicles are public transportation powered by electricity, with energy supplied from overhead power lines, and they are divided into two types: trolleybuses and trams.
I've repaired many electric vehicle charger issues. A red light without any sound usually indicates a fault. It could be the charger overheating and triggering its protection mechanism, which often happens during outdoor charging in summer. If the cooling fan is clogged with dust and stops spinning, poor heat dissipation will cause the red light. Another possibility is power socket issues - unstable voltage or poor contact preventing charging. Check if both the charging plug and vehicle port are securely connected without looseness. Another common cause is internal circuit short or component damage. In such cases, don't force charging as it poses safety risks. My suggestion is to unplug it first, let it cool for half an hour, then retry. If it still doesn't work, you'll need professional inspection or charger replacement at a repair shop. Regular maintenance includes keeping the charger clean and avoiding direct sunlight exposure. Always prioritize safety - never attempt to disassemble or repair internal components yourself due to high danger levels.
I've been using electric vehicles for years and have encountered the issue of the charger showing a red light without any sound a few times. Last time, it was due to my aging socket having poor contact, and the light returned to normal after replacing the socket. When the weather is too hot, the charger might activate overheating protection, with the red light indicating a pause in charging. I've tried moving it to a shaded area and restarting after a few minutes, which sometimes works. Check if there's any abnormal display on the vehicle's battery or if the charger's fan is blocked and not blowing air. Also, inspect the connecting cable for any damage or bends. I recommend resetting the charger by unplugging and plugging it back in to try again. If that doesn't work, note the light flashing pattern and consult the manual to find the cause. A cost-saving method is to use a multimeter to test the voltage, but avoid tampering with it; operate safely to prevent accidents. Ultimately, consult after-sales service to avoid bigger issues, as preventive maintenance can extend the equipment's lifespan.
