What Causes the Fan in a Van to Stop Working?

[Pierce]

If the cooling fan in your vehicle is not working, it could be due to a clogged air filter, insufficient coolant, a blocked heater core, or poor water temperature control. Other possible causes include transformer failure or a malfunctioning fan itself. Additional Information: Solutions: Method 1: First, check if the air filter is clogged. A non-functioning cooling fan can cause the engine's water temperature to rise. Modern vehicles use electronically controlled cooling fans, which only operate when the water temperature reaches a certain level. Method 2: If the water temperature meets the requirements but the fan still doesn't work, the issue might be a faulty relay or a malfunctioning temperature control switch. The temperature control switch can significantly impact the cooling fan's performance, so regular checks are necessary. Method 3: A damaged water temperature relay is often caused by poor wiring connections or a malfunction. If there's no response, the relay should be replaced immediately. A faulty temperature control switch can lead to elevated water temperature and prevent the cooling fan from receiving power properly.