Unless prompted to do so, do not press the trigger when checking any part of the machine.
| 1.Please clean the dust sensor.(To avoid dust accumulation which can affect cleaning performance, wipe the suction mouth with a damp cloth) | 
| 2.Please make sure dustbin installed well. | 
      
    
      
    
    
    
            Where is my serial number?
		            		            
		            		            
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