What is the reason for the red light on the electric vehicle charger but no sound?
3 Answers
This situation may be caused by a problem with the charger preventing charging, and it cannot be ruled out that the electric vehicle battery is faulty. Below is an introduction related to electric vehicles: Introduction: Electric vehicles first appeared on city streets in the 1880s, starting with trams, invented in 1881 by German Werner von Siemens. At that time, trams had to run on fixed tracks because they relied on steel rails to form the power circuit, making them inconvenient in crowded traffic areas. Classification: Electric vehicles are public transportation powered by electricity, with power supplied from overhead power lines, divided into two types: trolleybuses and trams.
The electric car charger's red light is on but there's no sound, which is often a normal phenomenon or a minor issue. Some chargers are designed with a red light indicating charging, but omit the sound prompt for a quieter environment. If it's unexpectedly silent, possible reasons include a stuck internal fan or a circuit malfunction—the fan is a common source of noise, and dirt or aging can cause it to stop, resulting in a red light but no sound. Voltage instability can also trigger this; when the power supply voltage is low, the fan may fail to start. It's recommended to first check if the power plug is loose or if the socket is supplying power normally. I've personally experienced this and solved it by cleaning the dust off the fan. However, if it persists, avoid forcing use as it may overheat and damage the charger—seeking professional repair is safer. Replacing the charger is also an option; don't skimp on small expenses and invite bigger troubles.
I've been playing with electric vehicles for many years and have encountered many situations where the charger's red light is on but there's no sound. The most common issues are the charger not being plugged in tightly or dirt blocking the fan vent. For example, if dust accumulates and jams the fan, it won't make any noise, but the red light indicates charging is in progress. Try unplugging and plugging the charger a few times to see if the sound returns or if it functions normally. If there's supposed to be a humming sound but it's gone, the motor might be burnt out or a wire might be broken. Humid weather can also easily cause problems. Last time, I used a cotton swab to clean the vent and it improved. Don't randomly open it up to fix it to avoid electric shock. A replacement charger only costs a few hundred bucks. For daily use, remember to perform regular maintenance to avoid similar issues and save yourself the hassle.
