Greenworks
Greenworks 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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E001
Robot mower will not start mowing; display shows E001 immediately after power-on or when START is pressed.
Emergency Stop / Main Safety Circuit Open
E002
Robot mower display shows E002 and will not leave the charging station.
Charging Station Communication Failure
E003
Robot mower shows E003 and stops; blades do not spin.
Blade Motor Overload / Stall
E004
Robot mower stops and displays E004 when trying to drive; wheels do not turn.
Drive Motor Overload / Stall
E005
Robot mower shows E005 and refuses to start; often after being lifted or bumped.
Tilt / Lift Sensor Triggered or Faulty
E006
Robot mower shows E006 and stops near the boundary wire; may not detect the loop correctly.
Boundary Wire Signal Not Detected
E007
Robot mower shows E007 and stops; often when approaching or leaving the charging station.
Charging Contact Error / Docking Alignment Fault
E008
Robot mower shows E008 and shuts down; often after long use or in hot weather.
Overtemperature Protection Activated
E009
Robot mower shows E009 and will not start; often after winter storage.
Battery Voltage Too Low / Deep Discharge
E010
Robot mower shows E010 and stops; display may mention bumper or collision.
Front Bumper Sensor Stuck or Faulty
E011
Robot mower shows E011 and stops on a slope or uneven ground.
Roll / Pitch Angle Out of Range
E012
Robot mower shows E012 and cannot find the charging station; may wander until battery is low.
Guide / Search Wire Signal Error (if equipped)
E013
Robot mower shows E013 and stops; often after hitting an obstacle or curb.
Chassis Lift / Wheel Off-Ground Detection
E014
Robot mower shows E014 and will not start; display may mention PIN or security.
PIN Code / Security Lockout
E015
Robot mower shows E015 and stops; may mention sensor error.
Ultrasonic / Obstacle Sensor Fault (if equipped)
E016
Robot mower shows E016 and stops; may mention rain or weather sensor.
Rain Sensor Fault (if equipped)
E017
Robot mower shows E017 and stops; may mention wheel sensor or speed error.
Wheel Encoder / Speed Sensor Fault
E018
Robot mower shows E018 and will not start; may mention blade sensor or RPM error.
Blade Speed Sensor / Tachometer Fault
E019
Robot mower shows E019 and reboots or freezes intermittently.
Main Control Board / Firmware Error
E020
Robot mower shows E020 and stops; may mention communication or module error.
Internal Communication Bus Error
Symptom
Robot mower cuts unevenly; lawn shows scalped patches and uncut tufts.
Uneven Cutting Height / Deck Misadjustment
Symptom
Robot mower display or keypad buttons do not respond reliably; some keys work intermittently.
Keypad / Control Panel Failure
Symptom
Robot mower does not detect rain and continues mowing in heavy rain despite having a rain sensor.
Rain Sensor Non-Responsive
Symptom
Robot mower does not return to the charging station and stops with low battery in the yard.
Home Docking Failure
Symptom
Robot mower does not start at all; no display, no LEDs, completely dead.
No Power / Dead Unit
Symptom
Robot mower drains its battery unusually fast and returns to charge much more often than before.
Reduced Battery Capacity / High Current Draw
Symptom
Robot mower emits a burning smell or very hot plastic odor during or after mowing.
Overheating Component / Electrical Overload
Symptom
Robot mower frequently gets stuck or spins its wheels without moving forward.
Traction Loss / Poor Grip
Symptom
Robot mower frequently tips onto its side or rear when turning or on slopes.
Stability / Balance Issue
Symptom
Robot mower has water droplets inside the display or under the transparent cover.
Moisture Ingress into Control Panel
Symptom
Robot mower is very noisy while cutting; grinding or rattling sounds from underneath.
Excessive Cutting Noise / Blade Disc Imbalance
Symptom
Robot mower leaves clumps of grass instead of finely mulching.
Poor Mulching Performance
Symptom
Robot mower leaves the boundary area or crosses paths it should not.
Boundary Containment Failure
Symptom
Robot mower leaves uncut strips of grass and misses areas within the boundary.
Poor Cutting Coverage / Navigation Inefficiency
Symptom
Robot mower loses connection to the Greenworks app or cannot be controlled remotely.
Wireless Connectivity Issue
Symptom
Robot mower makes loud clicking or grinding noises from one wheel while driving.
Drive Wheel Gearbox Wear / Damage
Symptom
Robot mower smells strongly of mold or mildew when opened or handled.
Organic Growth / Mold Inside Housing
Symptom
Robot mower starts but stops after a few seconds without showing an error code.
Intermittent Power Loss
Symptom
Robot mower stops frequently with blades off but no error code; resumes after a short time.
Overload Protection Cycling
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E001 |
Robot mower will not start mowing; display shows E001 immediately after power-on or when START is pressed.
|
Emergency Stop / Main Safety Circuit Open | View Details |
| E002 |
Robot mower display shows E002 and will not leave the charging station.
|
Charging Station Communication Failure | View Details |
| E003 |
Robot mower shows E003 and stops; blades do not spin.
|
Blade Motor Overload / Stall | View Details |
| E004 |
Robot mower stops and displays E004 when trying to drive; wheels do not turn.
|
Drive Motor Overload / Stall | View Details |
| E005 |
Robot mower shows E005 and refuses to start; often after being lifted or bumped.
|
Tilt / Lift Sensor Triggered or Faulty | View Details |
| E006 |
Robot mower shows E006 and stops near the boundary wire; may not detect the loop correctly.
|
Boundary Wire Signal Not Detected | View Details |
| E007 |
Robot mower shows E007 and stops; often when approaching or leaving the charging station.
|
Charging Contact Error / Docking Alignment Fault | View Details |
| E008 |
Robot mower shows E008 and shuts down; often after long use or in hot weather.
|
Overtemperature Protection Activated | View Details |
| E009 |
Robot mower shows E009 and will not start; often after winter storage.
|
Battery Voltage Too Low / Deep Discharge | View Details |
| E010 |
Robot mower shows E010 and stops; display may mention bumper or collision.
|
Front Bumper Sensor Stuck or Faulty | View Details |
| E011 |
Robot mower shows E011 and stops on a slope or uneven ground.
|
Roll / Pitch Angle Out of Range | View Details |
| E012 |
Robot mower shows E012 and cannot find the charging station; may wander until battery is low.
|
Guide / Search Wire Signal Error (if equipped) | View Details |
| E013 |
Robot mower shows E013 and stops; often after hitting an obstacle or curb.
|
Chassis Lift / Wheel Off-Ground Detection | View Details |
| E014 |
Robot mower shows E014 and will not start; display may mention PIN or security.
|
PIN Code / Security Lockout | View Details |
| E015 |
Robot mower shows E015 and stops; may mention sensor error.
|
Ultrasonic / Obstacle Sensor Fault (if equipped) | View Details |
| E016 |
Robot mower shows E016 and stops; may mention rain or weather sensor.
|
Rain Sensor Fault (if equipped) | View Details |
| E017 |
Robot mower shows E017 and stops; may mention wheel sensor or speed error.
|
Wheel Encoder / Speed Sensor Fault | View Details |
| E018 |
Robot mower shows E018 and will not start; may mention blade sensor or RPM error.
|
Blade Speed Sensor / Tachometer Fault | View Details |
| E019 |
Robot mower shows E019 and reboots or freezes intermittently.
|
Main Control Board / Firmware Error | View Details |
| E020 |
Robot mower shows E020 and stops; may mention communication or module error.
|
Internal Communication Bus Error | View Details |
| – |
Robot mower cuts unevenly; lawn shows scalped patches and uncut tufts.
|
Uneven Cutting Height / Deck Misadjustment | View Details |
| – |
Robot mower display or keypad buttons do not respond reliably; some keys work intermittently.
|
Keypad / Control Panel Failure | View Details |
| – |
Robot mower does not detect rain and continues mowing in heavy rain despite having a rain sensor.
|
Rain Sensor Non-Responsive | View Details |
| – |
Robot mower does not return to the charging station and stops with low battery in the yard.
|
Home Docking Failure | View Details |
| – |
Robot mower does not start at all; no display, no LEDs, completely dead.
|
No Power / Dead Unit | View Details |
| – |
Robot mower drains its battery unusually fast and returns to charge much more often than before.
|
Reduced Battery Capacity / High Current Draw | View Details |
| – |
Robot mower emits a burning smell or very hot plastic odor during or after mowing.
|
Overheating Component / Electrical Overload | View Details |
| – |
Robot mower frequently gets stuck or spins its wheels without moving forward.
|
Traction Loss / Poor Grip | View Details |
| – |
Robot mower frequently tips onto its side or rear when turning or on slopes.
|
Stability / Balance Issue | View Details |
| – |
Robot mower has water droplets inside the display or under the transparent cover.
|
Moisture Ingress into Control Panel | View Details |
| – |
Robot mower is very noisy while cutting; grinding or rattling sounds from underneath.
|
Excessive Cutting Noise / Blade Disc Imbalance | View Details |
| – |
Robot mower leaves clumps of grass instead of finely mulching.
|
Poor Mulching Performance | View Details |
| – |
Robot mower leaves the boundary area or crosses paths it should not.
|
Boundary Containment Failure | View Details |
| – |
Robot mower leaves uncut strips of grass and misses areas within the boundary.
|
Poor Cutting Coverage / Navigation Inefficiency | View Details |
| – |
Robot mower loses connection to the Greenworks app or cannot be controlled remotely.
|
Wireless Connectivity Issue | View Details |
| – |
Robot mower makes loud clicking or grinding noises from one wheel while driving.
|
Drive Wheel Gearbox Wear / Damage | View Details |
| – |
Robot mower smells strongly of mold or mildew when opened or handled.
|
Organic Growth / Mold Inside Housing | View Details |
| – |
Robot mower starts but stops after a few seconds without showing an error code.
|
Intermittent Power Loss | View Details |
| – |
Robot mower stops frequently with blades off but no error code; resumes after a short time.
|
Overload Protection Cycling | View Details |
No matching codes found
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