Why Does the Fan Keep Running After Locking the Car?

[VanJuniper]

1. Whether the water temperature meets the requirement: Most car radiator fans nowadays operate using electronic temperature control, so the fan usually starts running normally only when the internal water temperature reaches the required level. If the temperature is too low, the radiator fan won't turn. Therefore, if the car radiator fan is not working, the first thing to check is whether the water temperature meets the requirement. 2. Relay malfunction: If the water temperature is appropriate but the car radiator fan still doesn't work, the issue might lie with the fan's relay. A faulty relay can prevent the radiator fan from operating. 3. Temperature control switch problem: If the above two aspects are not the issue, then it's necessary to check the temperature control switch. Sometimes, faults can occur here, which can also affect the operation of the car radiator fan, so this should also be checked carefully.