Roborock Error 21: Vertical bumper pressed, and the fix

Steps2

ToolsNone

PartsNone

Works for Roborock robot vacuums (S, Q, Saros and Qrevo series).

Short answerRed light. The power light flashes red and the robot speaks the error.

What it means: The vertical bumper on the robot is pressed in, so the robot stopped.

Quick fix: Move the robot to open floor.

Fix it in 2 steps

Move the robot to open floor.
Try the clean again.

Fixed when: The robot cleans without the alert.

Still showing Vertical bumper pressed?

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 →

Parts that fix this

Refill kit (brushes and filters)For Roborock on AmazonCheck price →Check the part fits your model. Affiliate links: we may earn a commission at no cost to you.

Other Roborock errors

7Wheels stuck›12Battery too low›14Battery error›15Wall sensor dirty›16Robot tilted›18Fan error›22Dock locator error›23Cannot return to the dock›27VibraRise mop lift stuck›28Robot on carpet›42Maintenance brush jammed›Internal error›Fan speed lowered›No go zone or virtual wall detected›Cannot cross carpet›Dock light steady red›All 28 Roborock codes →

Keeps happening? Compare before you replace

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Roborock Qrevo 2 Pro$600 · Midrange mop washing robot with auto mop removal under $600 Check price on Amazon →

Narwal Flow 2 vs Roborock Qrevo Curv 2 FlowPoint by point

Roborock Error 21: Vertical bumper pressed, and the fix

Fix it in 2 steps

Parts that fix this

Other Roborock errors

Keeps happening? Compare before you replace

Sources