| 1.Confirm there's any display screen error? ☆Refer to the "Display icon default" guide. |
| 2.Wether dry filter is installed correctly? ☆Please make sure that the dry filter is installed properly |
| 3.Whether brush roller have passed replacement cycle？(3~6 months) ☆Please replace brush roller. |
| 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.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. |
| 6.Examine whether the floater, filter and dry filter is clogged or not? ☆Clean the floater, and wash filter and dry filter with water. And make sure filters are completely dry before reinstalling. |
| 7.Confirm whether floor is even and sealed hard floor? ☆Please use the unit on the sealed and even hard floor. |
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