This issue occurs when the electric clippers may be malfunctioning. Please try the following troubleshooting steps to verify if the issue can be resolved:

• Remove the electric clippers from the hose.
• Remove the blade from the electric clippers to clean it.

• Make sure the blade is installed properly before using the electric clippers.

• Restart the vacuum to verify if the issue has been resolved.

Please refer to the following video for instructions on how to use your pet grooming vacuum N930:

If you have any further questions, please contact us and include a video to show the details for assistance.