1. Nozzle blockage: There may be residue blockage in the nozzle, so it is necessary to remove the nozzle for cleaning.
2. Insufficient liquid level: If the liquid level sprayed is too low, it will affect the spraying effect, so it is necessary to replenish the liquid in time.
3, machine failure: if the motor is damaged or the line contact is poor, it will also lead to the inability to spray. At this time, it is necessary to check whether the motor and circuit are normal, and if there is a problem, it needs to be replaced or repaired.