Roborock Robot Vacuums Error Codes

Error 1

Roborock robot vacuum says “Error 1” / voice prompt: “Move the robot to a new location and restart” and will not start cleaning.

Lidar / Laser Distance Sensor (LDS) Obstruction or Jam

Error 10

Roborock robot vacuum announces “Error 10” / “Filter is blocked” and suction is reduced or stops.

HEPA Filter Clogged or Missing

Error 11

Roborock robot vacuum reports “Error 11” / “Suction fan error” and stops vacuuming.

Suction Fan Motor Failure or Blockage

Error 12

Roborock robot vacuum announces “Error 12” / “Battery error” and may shut down or refuse to charge.

Battery Pack Fault or Protection Triggered

Error 13

Roborock robot vacuum reports “Error 13” / “Charging error” and does not charge properly on the dock.

Charging Circuit or Dock Connection Fault

Error 14

Roborock robot vacuum announces “Error 14” / “Laser distance sensor error” and cannot start mapping.

LDS (Laser Distance Sensor) Failure

Error 15

Roborock robot vacuum reports “Error 15” / “Internal error” or “Please reboot the robot” and may behave unpredictably.

Main Control Board or Firmware Fault

Error 16

Roborock robot vacuum announces “Error 16” / “Place the robot on a flat surface” even when on level flooring.

Internal Tilt Sensor or IMU Error

Error 17

Roborock robot vacuum reports “Error 17” / “Localization failure” and cannot continue cleaning or return to dock.

Navigation Localization Loss

Error 18

Roborock robot vacuum announces “Error 18” / “Charging station not found” and fails to return to the dock.

Dock Localization or IR Receiver Issue

Error 2

Roborock robot vacuum announces “Error 2” / “Clean and tap the bumper” and stops cleaning.

Front Bumper Stuck or Impact Sensor Fault

Error 21

Roborock robot vacuum (mopping models) reports “Error 21” / “Water tank error” or “Water tank not installed correctly.”

Mop Water Tank Detection Fault

Error 22

Roborock robot vacuum (mopping models) reports “Error 22” / “Water pump error” and will not dispense water.

Mop Water Pump Failure or Blockage

Error 23

Roborock robot vacuum with auto-empty dock reports “Error 23” / “Dust collection error” after returning to the dock.

Auto-Empty Dock Suction or Path Blockage

Error 24

Roborock robot vacuum with mopping lift feature reports “Error 24” / “Mop module error” and cannot raise or lower the mop.

Mop Lifting Mechanism Jam or Sensor Fault

Error 26

Roborock robot vacuum with camera navigation (e.g., S6 MaxV, S7 MaxV, S8 Pro) reports “Error 26” / “Camera error.”

Front Camera or Obstacle Recognition Module Fault

Error 27

Roborock robot vacuum reports “Error 27” / “Ultrasonic sensor error” on models with ultrasonic carpet detection.

Ultrasonic Carpet Sensor Fault

Error 28

Roborock robot vacuum reports “Error 28” / “Water level sensor error” on models with integrated water tanks.

Water Level Sensor or Float Fault

Error 3

Roborock robot vacuum reports “Error 3” / “Wheel is suspended” or “Move the robot to a new location” and stops.

Drive Wheel Suspension or Cliff Mis-detection

Error 4

Roborock robot vacuum announces “Error 4” / “Cliff sensor error” and refuses to move or backs away from normal floor.

Cliff Sensor Contamination or Failure

Error 5

Roborock robot vacuum reports “Error 5” / “Main brush is blocked” and stops with the main brush icon flashing in the app.

Main Brush Stall or Overcurrent

Error 6

Roborock robot vacuum announces “Error 6” / “Side brush is blocked” and stops cleaning.

Side Brush Stall or Overcurrent

Error 7

Roborock robot vacuum reports “Error 7” / “Wheel is blocked” and cannot move properly.

Drive Wheel Blockage or Motor Overload

Error 8

Roborock robot vacuum announces “Error 8” / “Dustbin is not installed” even though the bin appears to be in place.

Dustbin Presence Switch or Contact Fault

Error 9

Roborock robot vacuum reports “Error 9” / “Main unit is stuck” and cannot free itself.

Chassis Obstruction or High-Centering

Symptom

Robot vacuum cannot connect to Wi‑Fi or frequently drops connection, but otherwise cleans normally.

Wi‑Fi Module or Network Compatibility Issue

Symptom

Robot vacuum does not detect carpets properly (fails to boost suction or lift mop on carpets).

Carpet Detection Failure

Symptom

Robot vacuum does not start cleaning on schedule, even though schedules are set in the app.

Scheduling or Communication Fault

Symptom

Robot vacuum drifts off straight lines, curves unexpectedly, or maps rooms with distorted shapes.

Navigation Alignment or Sensor Drift

Symptom

Robot vacuum gets stuck frequently on carpets, thresholds, or under furniture without showing a specific error code.

Mobility Limitation or Clearance Issue

Symptom

Robot vacuum is much louder than usual during operation, with grinding or rattling noises.

Mechanical Noise from Brush, Fan, or Gearbox

Symptom

Robot vacuum leaves clumps of hair or debris behind or spits debris out the back.

Airflow Bypass or Overfilled Dustbin

Symptom

Robot vacuum leaves visible dust lines or misses areas during cleaning, especially along walls or in corners.

Insufficient Edge Cleaning or Worn Brushes

Symptom

Robot vacuum leaves wet streaks, puddles, or drips water when not in mopping mode.

Water Tank or Valve Leakage

Symptom

Robot vacuum repeatedly bumps into furniture harder than before or fails to slow down before obstacles.

Obstacle Detection Sensor Degradation

Symptom

Robot vacuum runs for a very short time (e.g., 5–15 minutes) and then returns to dock or shuts off without a battery error code.

Battery Capacity Degradation

Symptom

Robot vacuum smells burnt or produces a strong hot plastic or electrical odor during use.

Overheating Motor or Electrical Component

Symptom

Robot vacuum vibrates excessively or bounces during operation, especially on hard floors.

Imbalanced Brush or Wheel Vibration

Symptom

Robot vacuum’s auto-empty dock is very loud or vibrates excessively during dust collection, more than when new.

Auto-Empty Dock Blower Imbalance or Blockage

Symptom

Robot vacuum’s front caster wheel does not swivel freely, causing navigation issues or drag marks.

Front Caster Wheel Jam or Wear

Symptom

Robot vacuum’s mop pad is excessively wet, soaking carpets or leaving large puddles.

Excessive Water Flow or Valve Stuck Open

Symptom

Robot vacuum’s mop pad is not getting wet, even though the water tank is full and no water pump error is shown.

Reduced Water Flow to Mop Pad