Coredy
Coredy 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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E1
Robot vacuum beeps and displays E1 / red Wi‑Fi indicator, will not start cleaning cycle.
Bumper Stuck or Collision Sensor Blocked
E10
Robot vacuum shows E10 and does not respond to Wi‑Fi or app commands properly.
Wi‑Fi Module / Communication Error
E11
Robot vacuum displays E11 and stops when transitioning between floor types or over thresholds.
Obstacle / Lift Sensor Error
E12
Robot vacuum shows E12 and water does not dispense from the mopping module (for mop‑capable Coredy models).
Water Pump / Mopping System Error
E13
Robot vacuum displays E13 and cannot start due to a reported dust bin issue.
Dust Bin Presence Sensor Error
E14
Robot vacuum shows E14 and navigation is erratic; robot may spin or fail to map rooms (on mapping‑capable Coredy models).
Gyroscope / IMU Error
E15
Robot vacuum displays E15 and cannot charge properly; may dock but battery icon does not increase.
Charging Circuit / Dock Contact Error
E16
Robot vacuum shows E16 and stops when moving; may report a stuck wheel even when wheels appear free.
Wheel Lift / Stall Sensor Error
E17
Robot vacuum displays E17 and cannot start due to reported overcurrent or short circuit.
Motor Overcurrent / Short Detection
E18
Robot vacuum shows E18 and cannot complete mapping or returns to dock prematurely (mapping models).
LDS / Laser or Optical Navigation Sensor Error (for models with top sensor turret or camera)
E19
Robot vacuum displays E19 and reports a firmware or internal memory error.
Firmware Corruption / MCU Error
E2
Robot vacuum shows E2 and stops shortly after starting, often near stairs or edges.
Cliff / Anti‑Drop Sensor Error
E20
Robot vacuum shows E20 and will not start due to an internal sensor bus error.
I2C / Sensor Bus Communication Fault
E3
Robot vacuum displays E3 and will not move or turns in circles.
Wheel Suspension or Wheel Encoder Fault
E4
Robot vacuum shows E4 and stops, often after running for a short time; may feel hot to the touch.
Main Brush Overload / Motor Overcurrent
E5
Robot vacuum displays E5 and suction is weak or stops completely.
Fan Motor / Suction System Fault
E6
Robot vacuum shows E6 and refuses to start or stops immediately after starting.
Side Brush Motor Error
E7
Robot vacuum displays E7 and cannot find or dock with the charging base reliably.
Charging Dock IR Receiver / Navigation Docking Error
E8
Robot vacuum shows E8 and shuts down; may be accompanied by overheating or strong smell.
Overheating Protection / Motor Thermal Trip
E9
Robot vacuum displays E9 and will not start; may also show low battery icon even after charging.
Battery Pack or Battery Communication Error
Symptom
Robot vacuum cannot connect to Wi‑Fi or frequently drops connection, but otherwise cleans normally.
Wi‑Fi Connectivity Issue without Code
Symptom
Robot vacuum does not charge even though it is correctly docked; dock LED is on.
No Charging / Contact Issue
Symptom
Robot vacuum does not power on at all; no lights or sounds when pressing the power button.
No Power / Dead Robot
Symptom
Robot vacuum does not return to the charging dock at the end of cleaning; it stops in random locations.
Auto‑Return / Docking Failure without Code
Symptom
Robot vacuum emits a burning smell during operation.
Overheating Motor or Electrical Component
Symptom
Robot vacuum frequently reports that it is lifted or off the floor even when on flat ground (no specific code).
False Lift Detection
Symptom
Robot vacuum gets stuck frequently on thresholds, rugs, or cords.
Frequent Stalling / Obstruction Issues
Symptom
Robot vacuum is unusually hot to the touch after a short cleaning cycle.
Thermal Overload without Code
Symptom
Robot vacuum is very loud during operation compared to normal, especially from the suction area.
Excessive Noise from Suction Fan or Brush
Symptom
Robot vacuum is very noisy from the wheel area, with grinding or clicking sounds when moving.
Drive Wheel Gear or Bearing Wear
Symptom
Robot vacuum leaves clumps of hair or debris behind the unit as it moves.
Debris Spillage from Dust Bin or Brush Area
Symptom
Robot vacuum leaves lines of debris or fails to pick up dirt effectively.
Poor Pickup / Reduced Suction Performance
Symptom
Robot vacuum occasionally bumps hard into furniture instead of slowing down.
Weak Obstacle Detection
Symptom
Robot vacuum powers on but shuts off within a few minutes of cleaning.
Short Runtime / Battery Capacity Loss
Symptom
Robot vacuum randomly stops and reports completion even though the area is not fully cleaned (no error code).
Premature Mission End / Navigation Logic Issue
Symptom
Robot vacuum runs but moves in circles or has difficulty going straight.
Tracking / Steering Error without Code
Symptom
Robot vacuum’s clock or schedule resets or is lost after power off.
Timekeeping / Schedule Memory Issue
Symptom
Robot vacuum’s main brush does not spin, but suction and movement are normal.
Main Brush Drive Failure without Code
Symptom
Robot vacuum’s mopping function leaves almost no water on the floor; pad stays dry.
Weak Water Output from Mopping System
Symptom
Robot vacuum’s mopping function leaves too much water, creating puddles.
Excessive Water Output from Mopping System
Symptom
Robot vacuum’s side brushes do not spin, but the main brush and suction work.
Side Brush Non‑Operation without Code
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Robot vacuum beeps and displays E1 / red Wi‑Fi indicator, will not start cleaning cycle.
|
Bumper Stuck or Collision Sensor Blocked | View Details |
| E10 |
Robot vacuum shows E10 and does not respond to Wi‑Fi or app commands properly.
|
Wi‑Fi Module / Communication Error | View Details |
| E11 |
Robot vacuum displays E11 and stops when transitioning between floor types or over thresholds.
|
Obstacle / Lift Sensor Error | View Details |
| E12 |
Robot vacuum shows E12 and water does not dispense from the mopping module (for mop‑capable Coredy models).
|
Water Pump / Mopping System Error | View Details |
| E13 |
Robot vacuum displays E13 and cannot start due to a reported dust bin issue.
|
Dust Bin Presence Sensor Error | View Details |
| E14 |
Robot vacuum shows E14 and navigation is erratic; robot may spin or fail to map rooms (on mapping‑capable Coredy models).
|
Gyroscope / IMU Error | View Details |
| E15 |
Robot vacuum displays E15 and cannot charge properly; may dock but battery icon does not increase.
|
Charging Circuit / Dock Contact Error | View Details |
| E16 |
Robot vacuum shows E16 and stops when moving; may report a stuck wheel even when wheels appear free.
|
Wheel Lift / Stall Sensor Error | View Details |
| E17 |
Robot vacuum displays E17 and cannot start due to reported overcurrent or short circuit.
|
Motor Overcurrent / Short Detection | View Details |
| E18 |
Robot vacuum shows E18 and cannot complete mapping or returns to dock prematurely (mapping models).
|
LDS / Laser or Optical Navigation Sensor Error (for models with top sensor turret or camera) | View Details |
| E19 |
Robot vacuum displays E19 and reports a firmware or internal memory error.
|
Firmware Corruption / MCU Error | View Details |
| E2 |
Robot vacuum shows E2 and stops shortly after starting, often near stairs or edges.
|
Cliff / Anti‑Drop Sensor Error | View Details |
| E20 |
Robot vacuum shows E20 and will not start due to an internal sensor bus error.
|
I2C / Sensor Bus Communication Fault | View Details |
| E3 |
Robot vacuum displays E3 and will not move or turns in circles.
|
Wheel Suspension or Wheel Encoder Fault | View Details |
| E4 |
Robot vacuum shows E4 and stops, often after running for a short time; may feel hot to the touch.
|
Main Brush Overload / Motor Overcurrent | View Details |
| E5 |
Robot vacuum displays E5 and suction is weak or stops completely.
|
Fan Motor / Suction System Fault | View Details |
| E6 |
Robot vacuum shows E6 and refuses to start or stops immediately after starting.
|
Side Brush Motor Error | View Details |
| E7 |
Robot vacuum displays E7 and cannot find or dock with the charging base reliably.
|
Charging Dock IR Receiver / Navigation Docking Error | View Details |
| E8 |
Robot vacuum shows E8 and shuts down; may be accompanied by overheating or strong smell.
|
Overheating Protection / Motor Thermal Trip | View Details |
| E9 |
Robot vacuum displays E9 and will not start; may also show low battery icon even after charging.
|
Battery Pack or Battery Communication Error | View Details |
| – |
Robot vacuum cannot connect to Wi‑Fi or frequently drops connection, but otherwise cleans normally.
|
Wi‑Fi Connectivity Issue without Code | View Details |
| – |
Robot vacuum does not charge even though it is correctly docked; dock LED is on.
|
No Charging / Contact Issue | View Details |
| – |
Robot vacuum does not power on at all; no lights or sounds when pressing the power button.
|
No Power / Dead Robot | View Details |
| – |
Robot vacuum does not return to the charging dock at the end of cleaning; it stops in random locations.
|
Auto‑Return / Docking Failure without Code | View Details |
| – |
Robot vacuum emits a burning smell during operation.
|
Overheating Motor or Electrical Component | View Details |
| – |
Robot vacuum frequently reports that it is lifted or off the floor even when on flat ground (no specific code).
|
False Lift Detection | View Details |
| – |
Robot vacuum gets stuck frequently on thresholds, rugs, or cords.
|
Frequent Stalling / Obstruction Issues | View Details |
| – |
Robot vacuum is unusually hot to the touch after a short cleaning cycle.
|
Thermal Overload without Code | View Details |
| – |
Robot vacuum is very loud during operation compared to normal, especially from the suction area.
|
Excessive Noise from Suction Fan or Brush | View Details |
| – |
Robot vacuum is very noisy from the wheel area, with grinding or clicking sounds when moving.
|
Drive Wheel Gear or Bearing Wear | View Details |
| – |
Robot vacuum leaves clumps of hair or debris behind the unit as it moves.
|
Debris Spillage from Dust Bin or Brush Area | View Details |
| – |
Robot vacuum leaves lines of debris or fails to pick up dirt effectively.
|
Poor Pickup / Reduced Suction Performance | View Details |
| – |
Robot vacuum occasionally bumps hard into furniture instead of slowing down.
|
Weak Obstacle Detection | View Details |
| – |
Robot vacuum powers on but shuts off within a few minutes of cleaning.
|
Short Runtime / Battery Capacity Loss | View Details |
| – |
Robot vacuum randomly stops and reports completion even though the area is not fully cleaned (no error code).
|
Premature Mission End / Navigation Logic Issue | View Details |
| – |
Robot vacuum runs but moves in circles or has difficulty going straight.
|
Tracking / Steering Error without Code | View Details |
| – |
Robot vacuum’s clock or schedule resets or is lost after power off.
|
Timekeeping / Schedule Memory Issue | View Details |
| – |
Robot vacuum’s main brush does not spin, but suction and movement are normal.
|
Main Brush Drive Failure without Code | View Details |
| – |
Robot vacuum’s mopping function leaves almost no water on the floor; pad stays dry.
|
Weak Water Output from Mopping System | View Details |
| – |
Robot vacuum’s mopping function leaves too much water, creating puddles.
|
Excessive Water Output from Mopping System | View Details |
| – |
Robot vacuum’s side brushes do not spin, but the main brush and suction work.
|
Side Brush Non‑Operation without Code | View Details |
No matching codes found
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