Error 27 — VibraRise mop module / mop motor error
On S7/S8 series, the VibraRise mopping module reports a fault — mop won't lift, won't vibrate, or motor stalled.
- Keep using it?
- Yes, with caution
- DIY difficulty
- Easy
- Typical cost
- $35-60
- Verified against
- global.roborock.com ↗
The fix
Roborock VibraRise mop module replacement
VibraRise mop module not seated, jammed, or its motor has failed
Diagnose first: Reseat the module and dry the contact pads first — that clears most Error 27s at no cost. Replace the module only if it still won't lift or vibrate once it's clean, dry, and clicked in firmly.
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How to fix it
- Remove the mop module by squeezing the release tabs.
- Inspect and clean the contact pads on both the module and the robot.
- Ensure both are completely dry before reattaching.
- Listen for the click when reinstalling — it must seat firmly.
- Power-cycle the robot.
- If the error persists, the mop module needs replacement.
Why it happens
Typical signs: Voice prompt 'Mop module error' or 'Please reinstall the mop' · App shows Error 27 · Mop doesn't lift on carpet · Mop doesn't scrub
- Mop module not seated properly Mop plate clipped on incorrectly.
- Debris jamming the mop lift mechanism Hair or grit in the lift arm.
- Wet contacts on the mop module Water on the electrical pads.
- Mop module motor failure Internal motor or PCB on the mop.
More Roborock robot vacuum codes
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: global.roborock.com.