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Unless prompted to do so, do not press the trigger when checking any part of the machine.
1.Is dry filter installed correctly? ☆Please make sure the dry filter is installed properly |
2.Whether brush roller have been worn? ☆Please replace brush roller. |
3.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. |
Where is my serial number?
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