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| 1.Confirm if Tineco's Cleaning Solution is being used or if another cleaning solution is being used? ☆Please use Tineco solution. | 
| 2.Whether brush roller have passed replacement cycle?(3~6 months) ☆Please replace brush roller. | 
| 3.Examine the scraper and see if there is dirt or debris on the scraper. Check if the scraper is deformed. ☆Clean debris & dirt in the scraper with cleaning tool. | 
| 4.Confirm whether there is dirt or debris in the channel or on the brush roller. ☆Please clean the brush roller and channel according to picture instructions. | 
| 5.Confirm whether floor is even and sealed hard floor? ☆Please use the unit on the sealed and even hard floor. | 
 
       
     
       
     
     
     
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