Ecovacs
Ecovacs Robot Vacuums Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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C1
Robot vacuum reports C1 and will not start cleaning; may say 'Please check the left wheel' or spin in circles.
Left Drive Wheel Stall / Obstruction
C10
Robot vacuum reports C10 and stops; may say 'Please check the navigation sensor' or fails to map properly.
LDS / Laser Distance Sensor Obstruction or Failure (for models with turret)
C11
Robot vacuum reports C11 and stops; may say 'Please check the gyroscope' or 'Navigation error'.
IMU / Gyroscope Sensor Error
C12
Robot vacuum reports C12 and stops; may say 'Please check the dust bin' or 'Dust bin not installed'.
Dust Bin Presence Sensor Fault
C13
Robot vacuum reports C13 and stops; may say 'Please check the battery' or shuts down quickly.
Battery Pack Fault / Low Voltage Protection
C14
Robot vacuum reports C14 and will not charge; charging indicator may flash or remain off.
Charging Circuit / Dock Communication Error
C15
Robot vacuum reports C15 and stops; may say 'Fan speed error' or 'Suction error'.
Vacuum Fan Speed Feedback Error
C16
Robot vacuum reports C16 and stops; may say 'Please check the water tank' on mopping models.
Water Tank Detection / Pump Error
C17
Robot vacuum reports C17 and stops; may say 'Please check the water pump' on mopping models.
Water Pump Failure / Blockage
C18
Robot vacuum reports C18 and stops; may say 'Please check the main brush cover' or 'Main brush not installed'.
Main Brush Cover / Presence Sensor Error
C19
Robot vacuum reports C19 and stops; may say 'Please check the side brushes' or 'Side brush error'.
Side Brush Presence / Overcurrent Error
C2
Robot vacuum reports C2 and will not start or stops shortly after starting; may say 'Please check the right wheel'.
Right Drive Wheel Stall / Obstruction
C20
Robot vacuum reports C20 and stops; may say 'Please move the robot to a new location' or 'Navigation failure'.
Navigation System General Fault
C3
Robot vacuum reports C3 and stops; often accompanied by spinning in place or moving erratically.
Drive Wheel Speed Mismatch / Encoder Error
C4
Robot vacuum reports C4 and stops; may say 'Please check the main brush' or the main brush does not spin.
Main Brush Stall / Overload
C5
Robot vacuum reports C5 and stops; side brushes may not spin or may start and stop repeatedly.
Side Brush Motor Overload / Stall
C6
Robot vacuum reports C6 and stops; may say 'Please check the fan' or suction is very weak or absent.
Vacuum Fan Motor Failure / Blockage
C7
Robot vacuum reports C7 and stops; may say 'Please check the bumper' or appears to think it is constantly colliding.
Front Bumper Stuck / Collision Sensor Fault
C8
Robot vacuum reports C8 and stops; may say 'Please check the cliff sensors' or refuses to move near edges.
Cliff Sensor Blocked / Malfunction
C9
Robot vacuum reports C9 and stops; may say 'Please check the anti-drop sensors' or 'Please move the robot to a new location'.
Cliff Sensor Calibration / Signal Error
E1
Robot vacuum reports E1 and will not start; often associated with wheel or movement issues.
General Drive System Error
E2
Robot vacuum reports E2 and stops; often related to side brush or main brush overload.
Brush Overcurrent / Stall Error
E3
Robot vacuum reports E3 and stops; may be associated with cliff sensor or anti-drop issues.
Cliff Sensor Error
E4
Robot vacuum reports E4 and stops; may indicate bumper or collision sensor problems.
Bumper / Collision Sensor Error
E5
Robot vacuum reports E5 and stops; often related to fan or suction issues.
Vacuum Fan Error
E6
Robot vacuum reports E6 and stops; may indicate battery or power issues.
Battery / Power Supply Error
E7
Robot vacuum reports E7 and stops; may say 'Wheel suspended' or 'Robot lifted'.
Wheel Suspension / Lift Sensor Error
E8
Robot vacuum reports E8 and stops; may indicate internal communication or main board error.
Internal Communication / MCU Error
E9
Robot vacuum reports E9 and stops; may be associated with water tank or mopping system on hybrid models.
Mopping System Error
Symptom
Robot vacuum avoids dark-colored rugs or refuses to cross black floor patterns.
False Cliff Detection on Dark Surfaces
Symptom
Robot vacuum cannot find or dock with the charging station; wanders near it or misses repeatedly.
Docking / IR Receiver Alignment Issue
Symptom
Robot vacuum does not dispense water at all during mopping; mop pad remains dry.
No Water Flow / Pump Not Priming
Symptom
Robot vacuum emits a burning smell or very hot air from exhaust during operation.
Overheating Fan or Brush Motor
Symptom
Robot vacuum frequently gets stuck on thresholds, rugs, or cords and stops.
Mobility / Obstacle Negotiation Issue
Symptom
Robot vacuum is unusually quiet and seems to have no suction, but brushes still spin.
Fan Not Running / Suction Loss
Symptom
Robot vacuum is very loud during operation; grinding or rattling noise from brush area.
Main Brush Bearing Wear / Foreign Object in Brush Housing
Symptom
Robot vacuum leaves fine dust on the floor even though the bin fills with larger debris.
Fine Dust Filtration / Air Bypass Issue
Symptom
Robot vacuum leaves streaks of water or puddles on the floor after mopping.
Excessive Water Dispensing / Mop Pad Oversaturation
Symptom
Robot vacuum makes clicking or grinding noises from one side; may veer to one side.
Drive Wheel Gearbox Wear / Debris in Wheel
Symptom
Robot vacuum repeatedly bumps into furniture and walls harder than usual; navigation seems poor.
Collision Sensor / Bumper Sensitivity Degradation
Symptom
Robot vacuum runs but leaves a lot of debris behind; poor pickup on carpets and hard floors.
Reduced Suction / Airflow Restriction
Symptom
Robot vacuum runs for only a short time (e.g., 5–15 minutes) before returning to dock or shutting off.
Battery Capacity Loss
Symptom
Robot vacuum stops frequently with 'Please move me to a new location' but no code is shown.
Stuck Detection / Overly Sensitive Obstacle Sensing
Symptom
Robot vacuum vibrates excessively or bounces on hard floors during operation.
Mechanical Imbalance / Brush or Wheel Deformation
Symptom
Robot vacuum will not power on at all; no lights or sounds.
No Power / Dead Robot
Symptom
Robot vacuum's map is distorted, rooms misaligned, or robot appears in wrong location in the app.
Mapping / Localization Drift
Symptom
Robot vacuum's Wi‑Fi will not connect or frequently disconnects from the Ecovacs app.
Wi‑Fi Connectivity / Communication Issue
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| C1 |
Robot vacuum reports C1 and will not start cleaning; may say 'Please check the left wheel' or spin in circles.
|
Left Drive Wheel Stall / Obstruction | View Details |
| C10 |
Robot vacuum reports C10 and stops; may say 'Please check the navigation sensor' or fails to map properly.
|
LDS / Laser Distance Sensor Obstruction or Failure (for models with turret) | View Details |
| C11 |
Robot vacuum reports C11 and stops; may say 'Please check the gyroscope' or 'Navigation error'.
|
IMU / Gyroscope Sensor Error | View Details |
| C12 |
Robot vacuum reports C12 and stops; may say 'Please check the dust bin' or 'Dust bin not installed'.
|
Dust Bin Presence Sensor Fault | View Details |
| C13 |
Robot vacuum reports C13 and stops; may say 'Please check the battery' or shuts down quickly.
|
Battery Pack Fault / Low Voltage Protection | View Details |
| C14 |
Robot vacuum reports C14 and will not charge; charging indicator may flash or remain off.
|
Charging Circuit / Dock Communication Error | View Details |
| C15 |
Robot vacuum reports C15 and stops; may say 'Fan speed error' or 'Suction error'.
|
Vacuum Fan Speed Feedback Error | View Details |
| C16 |
Robot vacuum reports C16 and stops; may say 'Please check the water tank' on mopping models.
|
Water Tank Detection / Pump Error | View Details |
| C17 |
Robot vacuum reports C17 and stops; may say 'Please check the water pump' on mopping models.
|
Water Pump Failure / Blockage | View Details |
| C18 |
Robot vacuum reports C18 and stops; may say 'Please check the main brush cover' or 'Main brush not installed'.
|
Main Brush Cover / Presence Sensor Error | View Details |
| C19 |
Robot vacuum reports C19 and stops; may say 'Please check the side brushes' or 'Side brush error'.
|
Side Brush Presence / Overcurrent Error | View Details |
| C2 |
Robot vacuum reports C2 and will not start or stops shortly after starting; may say 'Please check the right wheel'.
|
Right Drive Wheel Stall / Obstruction | View Details |
| C20 |
Robot vacuum reports C20 and stops; may say 'Please move the robot to a new location' or 'Navigation failure'.
|
Navigation System General Fault | View Details |
| C3 |
Robot vacuum reports C3 and stops; often accompanied by spinning in place or moving erratically.
|
Drive Wheel Speed Mismatch / Encoder Error | View Details |
| C4 |
Robot vacuum reports C4 and stops; may say 'Please check the main brush' or the main brush does not spin.
|
Main Brush Stall / Overload | View Details |
| C5 |
Robot vacuum reports C5 and stops; side brushes may not spin or may start and stop repeatedly.
|
Side Brush Motor Overload / Stall | View Details |
| C6 |
Robot vacuum reports C6 and stops; may say 'Please check the fan' or suction is very weak or absent.
|
Vacuum Fan Motor Failure / Blockage | View Details |
| C7 |
Robot vacuum reports C7 and stops; may say 'Please check the bumper' or appears to think it is constantly colliding.
|
Front Bumper Stuck / Collision Sensor Fault | View Details |
| C8 |
Robot vacuum reports C8 and stops; may say 'Please check the cliff sensors' or refuses to move near edges.
|
Cliff Sensor Blocked / Malfunction | View Details |
| C9 |
Robot vacuum reports C9 and stops; may say 'Please check the anti-drop sensors' or 'Please move the robot to a new location'.
|
Cliff Sensor Calibration / Signal Error | View Details |
| E1 |
Robot vacuum reports E1 and will not start; often associated with wheel or movement issues.
|
General Drive System Error | View Details |
| E2 |
Robot vacuum reports E2 and stops; often related to side brush or main brush overload.
|
Brush Overcurrent / Stall Error | View Details |
| E3 |
Robot vacuum reports E3 and stops; may be associated with cliff sensor or anti-drop issues.
|
Cliff Sensor Error | View Details |
| E4 |
Robot vacuum reports E4 and stops; may indicate bumper or collision sensor problems.
|
Bumper / Collision Sensor Error | View Details |
| E5 |
Robot vacuum reports E5 and stops; often related to fan or suction issues.
|
Vacuum Fan Error | View Details |
| E6 |
Robot vacuum reports E6 and stops; may indicate battery or power issues.
|
Battery / Power Supply Error | View Details |
| E7 |
Robot vacuum reports E7 and stops; may say 'Wheel suspended' or 'Robot lifted'.
|
Wheel Suspension / Lift Sensor Error | View Details |
| E8 |
Robot vacuum reports E8 and stops; may indicate internal communication or main board error.
|
Internal Communication / MCU Error | View Details |
| E9 |
Robot vacuum reports E9 and stops; may be associated with water tank or mopping system on hybrid models.
|
Mopping System Error | View Details |
| – |
Robot vacuum avoids dark-colored rugs or refuses to cross black floor patterns.
|
False Cliff Detection on Dark Surfaces | View Details |
| – |
Robot vacuum cannot find or dock with the charging station; wanders near it or misses repeatedly.
|
Docking / IR Receiver Alignment Issue | View Details |
| – |
Robot vacuum does not dispense water at all during mopping; mop pad remains dry.
|
No Water Flow / Pump Not Priming | View Details |
| – |
Robot vacuum emits a burning smell or very hot air from exhaust during operation.
|
Overheating Fan or Brush Motor | View Details |
| – |
Robot vacuum frequently gets stuck on thresholds, rugs, or cords and stops.
|
Mobility / Obstacle Negotiation Issue | View Details |
| – |
Robot vacuum is unusually quiet and seems to have no suction, but brushes still spin.
|
Fan Not Running / Suction Loss | View Details |
| – |
Robot vacuum is very loud during operation; grinding or rattling noise from brush area.
|
Main Brush Bearing Wear / Foreign Object in Brush Housing | View Details |
| – |
Robot vacuum leaves fine dust on the floor even though the bin fills with larger debris.
|
Fine Dust Filtration / Air Bypass Issue | View Details |
| – |
Robot vacuum leaves streaks of water or puddles on the floor after mopping.
|
Excessive Water Dispensing / Mop Pad Oversaturation | View Details |
| – |
Robot vacuum makes clicking or grinding noises from one side; may veer to one side.
|
Drive Wheel Gearbox Wear / Debris in Wheel | View Details |
| – |
Robot vacuum repeatedly bumps into furniture and walls harder than usual; navigation seems poor.
|
Collision Sensor / Bumper Sensitivity Degradation | View Details |
| – |
Robot vacuum runs but leaves a lot of debris behind; poor pickup on carpets and hard floors.
|
Reduced Suction / Airflow Restriction | View Details |
| – |
Robot vacuum runs for only a short time (e.g., 5–15 minutes) before returning to dock or shutting off.
|
Battery Capacity Loss | View Details |
| – |
Robot vacuum stops frequently with 'Please move me to a new location' but no code is shown.
|
Stuck Detection / Overly Sensitive Obstacle Sensing | View Details |
| – |
Robot vacuum vibrates excessively or bounces on hard floors during operation.
|
Mechanical Imbalance / Brush or Wheel Deformation | View Details |
| – |
Robot vacuum will not power on at all; no lights or sounds.
|
No Power / Dead Robot | View Details |
| – |
Robot vacuum's map is distorted, rooms misaligned, or robot appears in wrong location in the app.
|
Mapping / Localization Drift | View Details |
| – |
Robot vacuum's Wi‑Fi will not connect or frequently disconnects from the Ecovacs app.
|
Wi‑Fi Connectivity / Communication Issue | View Details |
No matching codes found
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