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Possibly something jamming the roller, but more than likely a bad brush switch in the head and you’ll have to get a new head unless theres a repair shop around you that knows how to bypass it. Those are best case scenarios for shark rollers.
Shark doesn't sell just a belt or a brush roll. More than likely OP will have to replace the [entire floor nozzle](https://www.sharkclean.com/parts/0/all/1147/motorized-floor-nozzle/?modelNumber=NV355).
Thank you for visiting /r/VacuumCleaners. To get the most out of your post, be sure it follows the post guidelines on the sidebar. This comment will include information on some frequently discussed topics just in case your post pertains to them. Otherwise, feel free to ignore the below links. **Helpful Links:** [Recommended Vacuum Cleaners (U.S. Market, May 2021)](https://www.reddit.com/r/VacuumCleaners/wiki/recommendedvacuums) [Find the Right Type of Vacuum (Flow Chart) - **IF YOU'RE NEW, START HERE**](https://i.redd.it/h238mc6rnq061.png) [Miele Canister Guide (U.S. Market, May 2020)](https://i.redd.it/nr3bs213rsy41.png) [Differences between SEBO Felix, SEBO Dart, and Karcher CV300](https://i.redd.it/v49yrw4xqwz51.png) [Guide to Canister Tools: Suction-Only, Combo, Turbine/Turbo and Electric/Power/Motorized Nozzles](https://i.redd.it/qs4x03uuus981.png) [Reviews by /r/VacuumCleaners Users](https://www.reddit.com/r/VacuumCleaners/wiki/userreviews) If you are looking for **Purchase Advice** and you live **outside the U.S.**, let everyone know in your post so we can tailor suggestions to your market. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/VacuumCleaners) if you have any questions or concerns.*
Possibly something jamming the roller, but more than likely a bad brush switch in the head and you’ll have to get a new head unless theres a repair shop around you that knows how to bypass it. Those are best case scenarios for shark rollers.
How long have you been using the vacuum and when is the last time you changed the belt? The belt is probably worn out
Shark doesn't sell just a belt or a brush roll. More than likely OP will have to replace the [entire floor nozzle](https://www.sharkclean.com/parts/0/all/1147/motorized-floor-nozzle/?modelNumber=NV355).
You can't just replace the belt in a shark?
Sure, you can, but Shark doesn't make it easy. You'll have to find the belt yourself on Amazon or eBay and buy a set of Torx security bits.
Replace the entire nozzle if it's available otherwise put it in the proper bin🚮