What are the reasons for the Tiida's electric fan not spinning?
3 Answers
Reasons for the Tiida's electric fan not spinning: 1. Poor motor lubrication: The fan not spinning may be due to insufficient lubrication of the motor, preventing it from driving the fan blades after installation; 2. Motor overheating: Overheating can reduce the motor's load-bearing capacity and effective power, making it unable to drive the load; 3. Reduced starting capacitor capacity: A decrease in capacitor capacity reduces the motor's starting torque, making it unable to drive the load; 4. Prolonged motor usage: Extended use of the fan can cause motor wear, leading to burnt bushings after shaft wear, increasing the motor's internal resistance and reducing load-bearing capacity, ultimately preventing the fan blades from rotating.
I've also encountered situations where the Tiida's electric fan wasn't working. After troubleshooting a few times, I found several common causes. The fan itself might be broken, such as due to motor aging or jamming. Fans working in high-temperature environments for long periods can lead to wire issues. Short circuits, broken wires, or loose plugs are frequent failure points, especially if the wire connected to the fan is damaged or worn out. Another possibility is a blown fuse—there's a small component in the car's fuse box that automatically breaks to protect the circuit when the current is too high. Then there's relay failure, which plays a key role in controlling the fan switch; if the contacts wear out, the fan will stop working. Lastly, don't forget to check the control module, such as the AC switch or temperature sensor. A faulty sensor might misjudge the temperature and prevent the fan from starting. I found the simplest method is to first check the fuse and plugs. If that doesn't work, head to the 4S shop. Prolonged electric fan issues can cause the engine to overheat, making driving unsafe.
From my experience, there are several common reasons why the Tiida's electric fan stops working. The most frequent issue is a damaged fan motor, where either the motor bearings seize up or internal wiring breaks, causing it to halt. Wiring problems should not be overlooked either, such as short circuits or breaks in the control wires running from the battery to the fan. Pay close attention to blown fuses—check the corresponding small tabs in the engine compartment fuse box to see if they're intact. A faulty relay can make the fan work intermittently, as it's responsible for signal transmission. Control-related issues should also be considered, such as malfunctioning AC panel buttons or sensors falsely reporting overheating. I recommend starting with the fuse—it's easy to inspect visually, and replacing one isn't costly. Avoid tampering with the wiring yourself; seek a professional mechanic to prevent the issue from escalating and affecting driving safety.
