deerma DX118C - Packing List; Included Items; Fault Analysis and Troubleshooting; Suction and Noise Issues

Note: Out o the power and unplug the power plug before
troubleshooting.
The vacuum cleaner has a reduced suction force and an abnormal
sound.
Troubleshooting: Stop working (overheated motor)
Blocked ground brush or suction
Troubleshooting: Dredge the attachments.
Blocked strainer
Troubleshooting: Clean or replace the strainer.