How to avoid the malfunction of the cooling fan?

The core conclusion of avoiding cooling fan failures is to take "environmental cleanliness+correct use+regular maintenance" as the core, reduce losses from the source, significantly extend fan life, and reduce the probability of failure. 1、 Optimize the usage environment, reduce dust and wear and tear Stay away from dusty and cotton environments. If unavoidable, install an adaptive filter on the fan (clean the filter regularly) to prevent dust from entering the shaft and internal circuits. Avoid the fan from coming into contact with damp and corrosive gases, prevent bearing rust and coil insulation damage, and stay away from high temperature heat sources to reduce motor overload operation. Ensure that the installation position of the fan is well ventilated, without any obstructions blocking the air inlet/outlet, to avoid prolonged high load operation of the fan due to airflow obstruction. 2、 Standardize installation and use to avoid human damage Align with the fixed hole during installation, tighten the screws without excessive force to prevent blade deformation and shaft displacement, and avoid friction with the housing during rotation. Strictly supply power according to the rated voltage of the fan, avoid excessive voltage fluctuations for DC fans, and keep AC fans away from circuits with unstable voltage to prevent coil burnout. Avoid frequent starting and stopping of fans (especially AC fans), reduce the current shock during motor startup, and do not forcefully move the running fan blades to prevent bearing or blade damage. 3、 Regular maintenance and upkeep to eliminate potential hazards in advance Regular cleaning: Every 1-3 months (shortened to 1 month in dusty environments), use a brush and a hair dryer to clean the dust on the fan blades, shaft, and filter to avoid dirt accumulation. Bearing maintenance: For oil bearing fans, drop 1-2 drops of special lubricating oil (avoid using edible oil) at the shaft every 6-12 months to reduce wear and tear; Ball bearing fans do not require frequent refueling, and slight noise can be supplemented with a small amount. Regular inspection: Observe the operation status of the fan. If there are signs such as a decrease in speed, increased noise, or loose fan blades, stop the machine in time for inspection to avoid minor problems from worsening.