Does blinking red light mean charging?

No, a blinking red indicator light on an electronic charger or electric vehicle charging station never means charging; instead, it universally indicates a critical error fault code, safety protection trip, or hardware malfunction that has halted power delivery. Under normal operating conditions, an active charging state is represented by a steady or pulsing green or blue indicator light, while standby mode is typically solid green or blue. A blinking red light warns the user that a fault such as a ground fault, over-voltage, or thermal overload has occurred. You can troubleshoot red light errors safely by standing on a dry floor. You can verify that your corrective action is successful when power-cycling the charger via your home circuit breaker clears the fault and returns the LED indicator to a normal green or blue ready state.