Roborock · Robot Vacuum Moderate

Error 3 — Wheel suspended / drop sensor triggered

One or both drive wheels are suspended in the air or have lost ground contact. The robot stops to avoid falling.

Keep using it?
Yes, with caution
DIY difficulty
Easy
Verified against
us.roborock.com ↗

How to fix it

  1. Pick up the robot and place it on a flat, open area of hard floor.
  2. Press each drive wheel up into the chassis and release; it should spring back fully.
  3. Cut and remove any hair or fibers wrapped around the wheel axles.
  4. Wipe the wheels with a damp cloth, then dry.
  5. Restart the cleaning cycle.
  6. If the wheel doesn't spring back freely, the wheel module needs replacement.

Why it happens

Typical signs: Voice prompt 'Wheels suspended, please move to a new location' · App shows Error 3 · Robot stops on rugs or edges · One wheel hangs down further than the other

  • Robot perched on edge of rug or threshold Thick rugs or transitions can lift a wheel off the floor.
  • Stuck on cables or low obstacle Wheels riding over an object lose floor contact.
  • Wheel jammed with hair or string Tangled wheel can't extend/retract properly.
  • Wheel suspension stuck Spring-loaded wheel module seized in the up position.

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • Roborock drive wheel module Common replacement
    Amazon →

More Roborock robot vacuum codes

Error 1 Error 1 — LDS laser distance sensor blocked or stuck Error 10 Error 10 — Filter blocked Error 11 Error 11 — Magnetic strip / no-go interference Error 12 Error 12 — Battery low, returning to dock Error 13 Error 13 — Charging error / contacts dirty Error 14 Error 14 — Battery error

All Roborock codes → All robot vacuum codes →

Frequently asked questions

What does the Error 3 code mean on a Roborock robot vacuum?

One or both drive wheels are suspended in the air or have lost ground contact. The robot stops to avoid falling.

What causes the Error 3 code on a Roborock robot vacuum?

Robot perched on edge of rug or threshold: Thick rugs or transitions can lift a wheel off the floor. Stuck on cables or low obstacle: Wheels riding over an object lose floor contact. Wheel jammed with hair or string: Tangled wheel can't extend/retract properly.

Is it safe to keep using a Roborock robot vacuum with a Error 3 error?

Yes, with caution. This is rated a moderate-severity fault.

How do I fix Error 3 on a Roborock robot vacuum?

Pick up the robot and place it on a flat, open area of hard floor. Press each drive wheel up into the chassis and release; it should spring back fully. Cut and remove any hair or fibers wrapped around the wheel axles.

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: us.roborock.com.