Shark NV450 Series Troubleshooting

If you are having problems with your Shark NV450 Series Vacuum Cleaner, you are not alone. Many Shark NV450 Series owners experience issues with their vacuum cleaner from time to time, and it can be frustrating to deal with these problems.

I have problems with my Shark NV450 Series

Shark NV450 Series Vacuum Cleaner Problems

Below are common issues and solutions for the Shark NV450 Series:

The Shark NV450 Series is not picking up debris. No suction or light suction.


  •  Check filters to see if they need cleaning. Follow instructions for rinsing and drying the filters before re-inserting back into the vacuum.
  • Dust cup may be full; empty dust cup.
  • Check hose, hose connections, nozzles, and accessories for blockages; clear blockages if required.
  • Close the suction release on the handle to increase suction power.

The Shark NV450 Series lifts area rugs


  • Suction is powerful. Take care when vacuuming area rugs or rugs with delicately sewn edges. Open the suction release on the handle to decrease suction power.
  • Turn off the unit to disengage the brush roll and restart with the POWER button for suction-only cleaning

The Shark NV450 Series Brush roll does not spin


  • Pull the handle toward you and release the floor
    nozzle to engage the brushroll feature.
  • With the power on, turn the brush roll on by pressing the brush roll button.
  • Immediately turn off and unplug the vacuum, disconnect the nozzle, and remove the blockage before reconnecting and turning the vacuum back on

The Shark NV450 Series turns off on its own


  • This vacuum cleaner is equipped with a motor-protective thermostat. If for some reason your vacuum overheats, the thermostat will automatically turn the unit off. Should this occur, perform the following steps to restart the motor thermostat:
    1. Turn the unit off.
    2. Unplug the vacuum.
    3. Empty the dust cup and clean the filters.
    4. Check for blockages in the hose, accessories, and inlet openings.
    5. Allow the unit to cool for a minimum of 45 minutes.
    6. Plug in the vacuum.
    7. Restart the unit using either the POWER or POWER + BRUSHROLL buttons.
  • Note: If the vacuum still does not start, contact Customer Service at 800-798-7398

Shark NV450 Series Replacement Parts

How to Diagnose and Repair a Shark NV450 Series

This guide will help you identify and resolve issues with your Shark NV450 Series Vacuum Cleaner.

Shark NV450 Series Issues? Need Help?

Users are encouraged to share their tips or frustrations with their Shark NV450 Series with the community by leaving a comment. Sharing insights and experiences can help other users get the most out of their vacuum cleaner and avoid common issues.

Share your Thoughts or Describe your problem below:

The maximum upload file size: 5 MB. You can upload: image. Links to YouTube, Facebook, Twitter and other services inserted in the comment text will be automatically embedded. Drop files here

Ask a Shark NV450 Series Question

If you're facing a particular issue with your Shark NV450 Series and need assistance, feel free to ask your question here.

Submit Question

Related Vacuum Cleaner Problems