What is the reason for the loud noise of the car fan?
There are 10 reasons and solutions for the loud noise of the car fan:
1. The exhaust fan blades in the air conditioner are deformed; Solution: Replace the exhaust fan;
2. The motor of the exhaust fan in the air conditioner is broken; Solution: Replace the exhaust fan;
3. There is a lot of dirt in the air conditioner; Solution: Clean the air conditioner .
4. The clutch bearing in the air-conditioning pump is worn; solution: replace the air-conditioning pump assembly.
5. The air-conditioning filter element has not been replaced for a long time; solution: replace the air-conditioning filter element.
6. The screws of the blower are loose due to vibration; solution: stop immediately, restore the loose bolts, check whether the blower is damaged, and then turn it on after confirming that there is no problem. Also check and maintain the bolts more often.
7. The fan blades collide with other parts; solution: it is necessary to open the fan, remove dirt or foreign objects, and restore the damaged parts.
8. The fan motor is worn and damaged; solution: drive the vehicle to the repair department in time to replace the exhaust fan motor or replace it with a new exhaust fan.
9. Excessive bearing wear; Solution: Observe the water tank and surrounding components to see if the bearing is excessively worn;
10. The rotor rubs against the stator; Solution: Check the lateral direction of the motor rotor shaft and longitudinal clearance. If there is no problem, remove the motor and fan to check whether the fan blades are deformed. If there is no problem, open the motor and check whether the rotor rubs against the stator.