WHAT IS THE CAUSE OF RADIATOR FAN FAULT OR DAMAGE?

A radiator fan can become faulty or damaged due to several reasons. Here are some common causes:

1. Electrical Issues: The radiator fan relies on electrical components such as fuses, relays, and wiring. A blown fuse, a faulty relay, or damaged wiring can prevent the fan from receiving power or functioning properly.
2. Fan Motor Failure: The motor that powers the radiator fan can wear out over time due to prolonged use, overheating, or manufacturing defects. When the motor fails, the fan will not operate.
3. Thermostat Switch Malfunction: The radiator fan is often controlled by a thermostat switch or a temperature sensor. If this switch or sensor fails, it may not signal the fan to turn on when the engine reaches a certain temperature, causing the fan to remain inactive.
4. Physical Damage: Debris, such as rocks or road debris, can physically damage the radiator fan blades or the motor. Additionally, a collision or impact near the radiator can damage the fan.
5. Cooling Fan Module Failure: Some vehicles use a cooling fan control module to regulate fan operation. If this module fails, the fan may not operate correctly or at all.
6. Worn-Out Bearings: The fan motor contains bearings that allow the fan to rotate smoothly. Over time, these bearings can wear out or seize, causing the fan to stop working or make unusual noises.
7. Obstructions: An obstruction in the fan's path, such as leaves, dirt, or other debris, can prevent the fan from spinning freely, potentially damaging the fan motor or blades.
8. Corrosion or Rust: Corrosion or rust on the fan blades or motor can weaken the fan and eventually cause it to fail.
9. Excessive Heat Exposure: Continuous exposure to high temperatures can damage the electrical components or the motor of the radiator fan, leading to malfunction.
10. Improper Installation or Maintenance: If the radiator fan is not installed correctly or is not maintained properly, it can become misaligned, damaged, or worn out prematurely.

Regular inspection and maintenance of the radiator fan and its related components can help prevent these issues and ensure the cooling system functions correctly.