The reason why the fan rotates very fast but there is no air coming out:
The fan blades are not fastened properly;
The fan blades are installed in the wrong direction and in the opposite direction;
The fan blades are not original and have poor air stirring ability;
The fan blades are damaged, resulting in weakened air leakage;
The surface of the fan blades is too dirty. Resulting in weak wind.
Corresponding solutions to the above situation:
Check whether the electric fan blades are installed and tightened, and if they are loose, tighten them in time;
Check the fan blades Whether it is installed incorrectly or in the wrong direction, it will cause no wind at the front and needs to be removed and reinstalled;
Check whether the fan blades are not the original ones. If the fan blades are too small, there will be no wind and should be replaced. The fan blades of the original machine;
Check whether the fan blades are damaged or deformed, and replace them with new ones in time;
Check whether the surface of the fan blades is dirty and clean them in time.