It is very rare for a CPU cooling fan to catch fire, but if it happens, it may be caused by several reasons:

Electrical failure: The wires of the cooling fan may short circuit, leading to overheating or even fire. This can be caused by aging wires, broken insulation, or improper installation.

Dust accumulation: After using the computer for a long time, a large amount of dust will accumulate in the cooling fan and heat sink. These dust will not only affect the heat dissipation effect, but also may cause a short circuit or cause the fan motor to overheat, and eventually cause a fire.

Fan bearing failure: If the bearing of the fan is badly worn, it may cause the fan to turn poorly or get stuck, increase the load on the fan motor, make the motor overheat, and eventually may catch fire.

Power supply problem: The power supply is unstable or the voltage is too high, which may cause the fan to work overloaded, which may cause a fire.

Inferior accessories: The use of inferior or substandard cooling fans, the quality of the material is not up to standard, may easily occur overheating or fire.

Chungfo's cpu fans have gone through strict quality control, you can rest assured to buy. We don't just do cpu fans, we also offer high quality mini cross flow fan and cross flow fan blade Wholesale to ensure that your equipment always maintains a good heat dissipation effect. Especially suitable for cross flow fan in air conditioner, help you create a safe and stable working environment!