1. The filter bag is not placed properly.
If the filter bag forgets to support the bracket, or the four rubber rings are not completely flat on the plane of the dust collecting chamber, the sucked ash and dust will enter the main cavity with the wind from the edge of the filter bag. In this kind of fault, just open the dust collecting chamber, check whether the support frame of the filter bag is installed, and whether the filter bag is flat. If not, just reinstall and level it to eliminate this obstacle.
2. The vent hole of the filter bag is too large
If the vacuum cleaner uses a material with a larger aperture as the filter bag, the dust filter effect is poor. The filter bag should be replaced at this time.
3. The filter bag is damaged
In use, the vacuum cleaner draws in sharp nails, blades, or broken metal to break the filter bag, or the filter bag breaks for a long time. Large dust is sucked into the fan, the motor, and discharged from the exhaust port.
Therefore, before using the vacuum cleaner, check if the filter bag is properly placed and damaged. Because if this happens, dust particles will enter the main unit, causing short-circuit between the stator and rotor windings of the motor, causing the motor to be damaged.