The reason why the fan always turns when BYD Qin charges:
1, line or short circuit fault;
2, the coolant circulation is not smooth;
3, temperature sensor and front drive assembly failure.
A BYD Qin EV, the car charging or on the OK power and driving, the electronic fan always turn (low speed). According to the above three aspects of maintenance, should be able to quickly solve. I hope my answer can help you.
1. The battery also generates a certain amount of heat when it is charged. So the fan will turn. 2. When the vehicle is running, the motor and controller, as well as the battery, will generate heat. So the fan rotates and cools them down.
It is normal for the cooling fan to turn itself. Because when charging, the charging system will have a high temperature, and the fan is to cool it down.