[Fix my robot](https://robotsforthat.com/fix/) / [Roborock](https://robotsforthat.com/guides/roborock-error-codes/) / Fan speed lowered ● Checked Nov 3, 2026 From Roborock support Roborock # Roborock "Fan speed lowered": what it means and the fix Steps **2** Tools **None** Parts Maybe filter Works for Roborock robot vacuums (S, Q, Saros and Qrevo series). Short answer **What it means:** The suction fan is running slower than normal. **Quick fix:** Clear the strainer. ## Fix it in 2 steps - Clear the strainer. Done? - Replace the filter. Did it work? **Fixed when:** The robot cleans at normal suction without the message. Great, it is fixed. Bookmark this page in case it comes back. **Still showing Fan speed lowered?** The error comes back after you follow these steps. Contact Roborock support with your model, serial number and the error number. Contact Roborock support at 1 855 960 4321 (24/7 (US)). [Roborock support →](https://support.roborock.com/hc/en-us/sections/360007120351-Troubleshooting) ## Parts that fix this **Often linked to the filter.** A clogged filter cuts suction and makes the fan work harder. **How old is your Roborock?** [Fixes this · our kit 1 year refill kit for Roborock S8, S8+ and S8 Pro Ultra 2 rubber main rollers (1 set), 4 side brushes, 4 filters, 4 mop cloths. Free US shipping · Fit guarantee $16.99 See the kit →](https://robotsforthat.com/shop/roborock-s8-refill-kit/) [Just the filter For Roborock on Amazon Check price →](https://www.amazon.com/s?k=Roborock%20replacement%20filters&tag=robotsforthatai-20) Check the part fits your model. Affiliate links: we may earn a commission at no cost to you. Remind me when parts are due (one free email) ## Why it happens - A blocked strainer - A clogged filter ## Other Roborock errors [7 Wheels stuck ›](https://robotsforthat.com/fix/roborock-error-7/)[12 Battery too low ›](https://robotsforthat.com/fix/roborock-error-12/)[14 Battery error ›](https://robotsforthat.com/fix/roborock-error-14/)[15 Wall sensor dirty ›](https://robotsforthat.com/fix/roborock-error-15/)[16 Robot tilted ›](https://robotsforthat.com/fix/roborock-error-16/)[18 Fan error ›](https://robotsforthat.com/fix/roborock-error-18/)[21 Vertical bumper pressed ›](https://robotsforthat.com/fix/roborock-error-21/)[22 Dock locator error ›](https://robotsforthat.com/fix/roborock-error-22/)[23 Cannot return to the dock ›](https://robotsforthat.com/fix/roborock-error-23/)[27 VibraRise mop lift stuck ›](https://robotsforthat.com/fix/roborock-error-27/)[28 Robot on carpet ›](https://robotsforthat.com/fix/roborock-error-28/)[42 Maintenance brush jammed ›](https://robotsforthat.com/fix/roborock-error-42/)[Internal error ›](https://robotsforthat.com/fix/roborock-internal-error/)[No go zone or virtual wall detected ›](https://robotsforthat.com/fix/roborock-no-go-zone-detected/)[Cannot cross carpet ›](https://robotsforthat.com/fix/roborock-cannot-cross-carpet/)[Dock light steady red ›](https://robotsforthat.com/fix/roborock-dock-light-red/)[All 28 Roborock codes →](https://robotsforthat.com/guides/roborock-error-codes/) ## Keeps happening? Compare before you replace [Roborock Qrevo Curv 2 Flow $650 · Roller mop robot for mostly hard floor homes at a midrange price](https://robotsforthat.com/robot/roborock-qrevo-curv-2-flow/)[Check price on Amazon →](https://www.amazon.com/dp/B0FXG2BDTJ?tag=robotsforthatai-20) [Roborock Qrevo 2 Pro $600 · Midrange mop washing robot with auto mop removal under $600](https://robotsforthat.com/robot/roborock-qrevo-2-pro/)[Check price on Amazon →](https://www.amazon.com/dp/B0GXF7ZQPY?tag=robotsforthatai-20) [Narwal Flow 2 vs Roborock Qrevo Curv 2 Flow Point by point](https://robotsforthat.com/vs/narwal-flow-2-vs-roborock-qrevo-curv-2-flow/) **Own a Roborock? Keep it running.** Add it to My Robots. See fixes for your exact model, get an email when parts are due, and ask us to find a repair if it breaks. Free · no password [Add my robot](https://robotsforthat.com/my/?add=1) ## Sources - [Roborock Help Center: S8 Pro Ultra troubleshooting](https://help.roborock.com/en-US/product/s8-pro-ultra-message?category=troubleshooting) - [Roborock Help Center: Saros 10 troubleshooting](https://help.roborock.com/us/product/roborock-saros-10-message?category=troubleshooting) - [Roborock support: robot vacuum user manual (errors list)](https://support.roborock.com/hc/en-us/article_attachments/4416002300441) Black Friday is Nov 27 Get the Black Friday prices on robot vacuums, mowers, pool robots, 3D printers and kits the day they drop We check prices every morning and compare them with each model's 2026 low. One email when real deals land, plus our 5 minute Friday roundup. Unsubscribe anytime. HTML version: https://robotsforthat.com/fix/roborock-fan-speed-lowered/