Hyundai Robot Lawnmowers 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 lawnmower will not start mowing; display shows E1 shortly after power-on.
Emergency Stop / Lift Sensor Triggered
E10
Robot lawnmower displays E10 and will not leave the charging station.
Charging Station Communication Error
E11
Robot lawnmower shows E11 and stops; display may indicate 'Outside working area'.
Out of Boundary / Guide Signal Error
E12
Robot lawnmower displays E12 and shuts down unexpectedly during operation.
Overtemperature Protection (Electronics or Motor)
E13
Robot lawnmower shows E13 and does not respond to keypad or display inputs.
Keypad / Control Panel Communication Error
E14
Robot lawnmower displays E14 and cannot be started even with correct PIN.
Security / PIN or Immobilizer Error
E15
Robot lawnmower shows E15 and stops near obstacles; may not detect collisions properly.
Ultrasonic / Proximity Sensor Fault (if equipped)
E16
Robot lawnmower displays E16 and stops; may be accompanied by erratic navigation.
Compass / Orientation Sensor Error (if equipped)
E17
Robot lawnmower shows E17 and immediately stops blade rotation.
Blade Disc Imbalance / Excessive Vibration
E18
Robot lawnmower displays E18 and cannot complete docking; repeatedly overshoots or misses the base.
Docking Alignment / Guide Tracking Error
E19
Robot lawnmower shows E19 and shuts down shortly after starting; battery icon may appear full.
Battery Capacity / Cell Imbalance Detected
E2
Robot lawnmower stops and displays E2; blades do not spin.
Blade Motor Overload / Stall
E20
Robot lawnmower displays E20 and does not move; may be accompanied by a low-voltage warning.
Undervoltage / Power Supply Error
E3
Robot lawnmower shows E3 and stops; wheels do not move even though blades may spin.
Drive Motor Overcurrent / Wheel Jam
E4
Robot lawnmower displays E4 and refuses to start; often occurs when placed outside the boundary wire.
No Loop Signal / Boundary Wire Not Detected
E5
Robot lawnmower shows E5 and stops; often after hitting an obstacle or when nose is lifted.
Tilt / Overturn Protection Activated
E6
Robot lawnmower displays E6 and will not charge or start mowing.
Battery Communication / Battery Pack Fault
E7
Robot lawnmower shows E7 and stops; often after bumping into obstacles.
Bumper / Collision Sensor Fault
E8
Robot lawnmower displays E8 and does not move; may occur when wheels slip.
Wheel Encoder / Motor Tachometer Error
E9
Robot lawnmower shows E9 and stops; often associated with rain or heavy dew.
Rain Sensor / Moisture Detection Fault
Symptom
Robot lawnmower base station LED flashes or changes color indicating a loop fault, but mower has not yet shown an error.
Early Boundary Loop Degradation
Symptom
Robot lawnmower display works but screen is very dim or unreadable in daylight.
Display Backlight / LCD Degradation
Symptom
Robot lawnmower does not return to the charging station and stops with low battery in the lawn.
Return-to-Base / Navigation Failure
Symptom
Robot lawnmower does not start at scheduled times but can be started manually.
Scheduling / Timer Configuration Issue
Symptom
Robot lawnmower emits a burning smell or shows signs of overheating around the motor area.
Overheating Motor or Wiring
Symptom
Robot lawnmower emits a high-pitched squeak or chirp when wheels turn.
Wheel Bearing or Axle Noise
Symptom
Robot lawnmower frequently gets stuck on small bumps, roots, or uneven ground.
Chassis Ground Clearance / Traction Issue
Symptom
Robot lawnmower is dead; no display, no LEDs, and does not respond when placed on the charging station.
No Power / Dead Unit
Symptom
Robot lawnmower is very noisy during operation, with grinding or rattling sounds from underneath.
Mechanical Noise from Blade Motor or Drive Train
Symptom
Robot lawnmower leaves clumps of grass and struggles in tall or wet grass.
Poor Cutting Performance
Symptom
Robot lawnmower leaves track marks or scalps the lawn in certain areas.
Incorrect Cutting Height / Weight Distribution
Symptom
Robot lawnmower leaves uncut strips of grass and misses areas within the boundary.
Inefficient Mowing Pattern / Coverage Issue
Symptom
Robot lawnmower occasionally loses wireless connection to the mobile app (if model supports app control).
Connectivity / Bluetooth or Wi-Fi Dropouts
Symptom
Robot lawnmower occasionally stops with the message 'Obstacle' but there is nothing visible in front.
False Obstacle Detection
Symptom
Robot lawnmower randomly restarts or freezes during operation without showing a specific error code.
Intermittent Electronics / Firmware Fault
Symptom
Robot lawnmower stops frequently with the message indicating 'Lifted' but no error code on some models.
Intermittent Lift Sensor Activation
Symptom
Robot lawnmower veers to one side and does not drive straight.
Uneven Drive / Wheel Speed Imbalance
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Robot lawnmower will not start mowing; display shows E1 shortly after power-on.
|
Emergency Stop / Lift Sensor Triggered | View Details |
| E10 |
Robot lawnmower displays E10 and will not leave the charging station.
|
Charging Station Communication Error | View Details |
| E11 |
Robot lawnmower shows E11 and stops; display may indicate 'Outside working area'.
|
Out of Boundary / Guide Signal Error | View Details |
| E12 |
Robot lawnmower displays E12 and shuts down unexpectedly during operation.
|
Overtemperature Protection (Electronics or Motor) | View Details |
| E13 |
Robot lawnmower shows E13 and does not respond to keypad or display inputs.
|
Keypad / Control Panel Communication Error | View Details |
| E14 |
Robot lawnmower displays E14 and cannot be started even with correct PIN.
|
Security / PIN or Immobilizer Error | View Details |
| E15 |
Robot lawnmower shows E15 and stops near obstacles; may not detect collisions properly.
|
Ultrasonic / Proximity Sensor Fault (if equipped) | View Details |
| E16 |
Robot lawnmower displays E16 and stops; may be accompanied by erratic navigation.
|
Compass / Orientation Sensor Error (if equipped) | View Details |
| E17 |
Robot lawnmower shows E17 and immediately stops blade rotation.
|
Blade Disc Imbalance / Excessive Vibration | View Details |
| E18 |
Robot lawnmower displays E18 and cannot complete docking; repeatedly overshoots or misses the base.
|
Docking Alignment / Guide Tracking Error | View Details |
| E19 |
Robot lawnmower shows E19 and shuts down shortly after starting; battery icon may appear full.
|
Battery Capacity / Cell Imbalance Detected | View Details |
| E2 |
Robot lawnmower stops and displays E2; blades do not spin.
|
Blade Motor Overload / Stall | View Details |
| E20 |
Robot lawnmower displays E20 and does not move; may be accompanied by a low-voltage warning.
|
Undervoltage / Power Supply Error | View Details |
| E3 |
Robot lawnmower shows E3 and stops; wheels do not move even though blades may spin.
|
Drive Motor Overcurrent / Wheel Jam | View Details |
| E4 |
Robot lawnmower displays E4 and refuses to start; often occurs when placed outside the boundary wire.
|
No Loop Signal / Boundary Wire Not Detected | View Details |
| E5 |
Robot lawnmower shows E5 and stops; often after hitting an obstacle or when nose is lifted.
|
Tilt / Overturn Protection Activated | View Details |
| E6 |
Robot lawnmower displays E6 and will not charge or start mowing.
|
Battery Communication / Battery Pack Fault | View Details |
| E7 |
Robot lawnmower shows E7 and stops; often after bumping into obstacles.
|
Bumper / Collision Sensor Fault | View Details |
| E8 |
Robot lawnmower displays E8 and does not move; may occur when wheels slip.
|
Wheel Encoder / Motor Tachometer Error | View Details |
| E9 |
Robot lawnmower shows E9 and stops; often associated with rain or heavy dew.
|
Rain Sensor / Moisture Detection Fault | View Details |
| – |
Robot lawnmower base station LED flashes or changes color indicating a loop fault, but mower has not yet shown an error.
|
Early Boundary Loop Degradation | View Details |
| – |
Robot lawnmower display works but screen is very dim or unreadable in daylight.
|
Display Backlight / LCD Degradation | View Details |
| – |
Robot lawnmower does not return to the charging station and stops with low battery in the lawn.
|
Return-to-Base / Navigation Failure | View Details |
| – |
Robot lawnmower does not start at scheduled times but can be started manually.
|
Scheduling / Timer Configuration Issue | View Details |
| – |
Robot lawnmower emits a burning smell or shows signs of overheating around the motor area.
|
Overheating Motor or Wiring | View Details |
| – |
Robot lawnmower emits a high-pitched squeak or chirp when wheels turn.
|
Wheel Bearing or Axle Noise | View Details |
| – |
Robot lawnmower frequently gets stuck on small bumps, roots, or uneven ground.
|
Chassis Ground Clearance / Traction Issue | View Details |
| – |
Robot lawnmower is dead; no display, no LEDs, and does not respond when placed on the charging station.
|
No Power / Dead Unit | View Details |
| – |
Robot lawnmower is very noisy during operation, with grinding or rattling sounds from underneath.
|
Mechanical Noise from Blade Motor or Drive Train | View Details |
| – |
Robot lawnmower leaves clumps of grass and struggles in tall or wet grass.
|
Poor Cutting Performance | View Details |
| – |
Robot lawnmower leaves track marks or scalps the lawn in certain areas.
|
Incorrect Cutting Height / Weight Distribution | View Details |
| – |
Robot lawnmower leaves uncut strips of grass and misses areas within the boundary.
|
Inefficient Mowing Pattern / Coverage Issue | View Details |
| – |
Robot lawnmower occasionally loses wireless connection to the mobile app (if model supports app control).
|
Connectivity / Bluetooth or Wi-Fi Dropouts | View Details |
| – |
Robot lawnmower occasionally stops with the message 'Obstacle' but there is nothing visible in front.
|
False Obstacle Detection | View Details |
| – |
Robot lawnmower randomly restarts or freezes during operation without showing a specific error code.
|
Intermittent Electronics / Firmware Fault | View Details |
| – |
Robot lawnmower stops frequently with the message indicating 'Lifted' but no error code on some models.
|
Intermittent Lift Sensor Activation | View Details |
| – |
Robot lawnmower veers to one side and does not drive straight.
|
Uneven Drive / Wheel Speed Imbalance | View Details |
No matching codes found
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