Worx
Worx 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 mower will not start mowing and displays E1 on the LCD or app.
Lift Sensor Triggered / Mower Lifted
E10
Robot mower shows E10 and stops; often associated with wheel speed anomalies.
Wheel Motor Sensor / Encoder Error
E11
Robot mower displays E11 and stops, often when starting a new job.
Battery Temperature Out of Range
E12
Robot mower shows E12 and will not operate; may be accompanied by no response from some sensors.
Sensor Bus / Peripheral Communication Failure
E13
Robot mower displays E13 and stops, often when blades are commanded to start.
Blade Motor Current Sensor Error
E14
Robot mower shows E14 and refuses to start; may be associated with app connectivity issues.
Security / PIN or Anti-Theft Lock Error
E15
Robot mower displays E15 and stops, often when using optional accessories like ultrasonic sensors.
Accessory Module Communication Error
E16
Robot mower shows E16 and stops; may occur when the mower is lifted near the charging base.
Docking Contact Short / Charging Fault
E17
Robot mower displays E17 and stops; often associated with GPS or Wi‑Fi models.
Connectivity / Cloud Communication Error
E18
Robot mower shows E18 and stops; may occur when the mower is manually moved.
Unexpected Movement / Anti-Theft Motion Error
E19
Robot mower displays E19 and stops; often when starting from the base after a long idle period.
RTC / Internal Clock Error
E2
Robot mower stops and displays E2, often shortly after starting or when turning.
Tilt Sensor Triggered / Excessive Incline
E20
Robot mower shows E20 and stops; may be associated with rain or wet grass.
Rain Sensor / Wet Condition Error
E3
Robot mower displays E3 and stops; may occur when approaching or leaving the charging base.
Charging Station / Docking Alignment Error
E4
Robot mower shows E4 and stops; blades do not spin or stop abruptly when encountering grass.
Blade Motor Overload / Blocked Cutting Disc
E5
Robot mower displays E5 and stops, often when wheels slip or get stuck.
Wheel Motor Overload / Wheel Blocked
E6
Robot mower shows E6 and will not start; often occurs when outside the boundary wire.
Out of Boundary / No Loop Signal Detected
E7
Robot mower displays E7 and stops, often when reversing or turning near obstacles.
Bumper / Collision Sensor Stuck
E8
Robot mower shows E8 and stops; may occur randomly during operation.
Internal Communication Error / Main Board Fault
E9
Robot mower displays E9 and refuses to start mowing from the charging base.
Charging Error / Battery Not Charging
Symptom
Robot mower base LED indicates loop OK, but mower will not start scheduled jobs (no error on display).
Scheduling / Timer Not Executing
Symptom
Robot mower cuts unevenly, leaving scalped patches and tall patches.
Uneven Cutting Height / Deck Level Issue
Symptom
Robot mower display or keypad does not respond, but the mower still charges.
User Interface Failure
Symptom
Robot mower does not detect rain and continues mowing in heavy rain despite having a rain sensor.
Rain Sensor Not Responding
Symptom
Robot mower does not return to the charging base and stops in the lawn with low battery.
Homing / Return-to-Base Failure
Symptom
Robot mower does not start at all; no display, no sounds, and does not respond when placed on the lawn.
No Power / Dead Mower
Symptom
Robot mower drains its battery while parked on the charging base and does not maintain charge.
Standby Power Drain / No Trickle Charge
Symptom
Robot mower emits a burning smell or shows signs of overheating without a specific error code.
Overheating / Electrical Overload
Symptom
Robot mower frequently reports being lifted or tilted in the app, but no error code is shown on the mower.
False Lift/Tilt Events
Symptom
Robot mower gets stuck frequently on small obstacles, roots, or uneven ground.
Frequent Stalling / Ground Clearance Issue
Symptom
Robot mower is very noisy during operation, with grinding or rattling sounds from underneath.
Mechanical Noise / Worn Bearings or Loose Components
Symptom
Robot mower leaves clumps of grass and the lawn looks messy after mowing.
Poor Mulching / Grass Discharge Issue
Symptom
Robot mower leaves uncut strips of grass or misses areas within the boundary.
Poor Coverage / Navigation Pattern Issue
Symptom
Robot mower occasionally loses connection to the Worx app or reports offline status while still mowing.
Intermittent Connectivity / Telemetry Dropouts
Symptom
Robot mower randomly restarts or reboots during operation without showing an error code.
Intermittent Power / Reset Issue
Symptom
Robot mower sometimes runs outside the boundary wire without stopping.
Boundary Detection Weak / Loop Sensor Sensitivity Issue
Symptom
Robot mower starts but stops after a few minutes without any error code, often returning to base prematurely.
Premature Return / Reduced Runtime
Symptom
Robot mower stops with blades off but wheels still trying to move, often on steep slopes.
Traction Loss / Wheel Slip
Symptom
Robot mower vibrates excessively or bounces while mowing.
Excessive Vibration / Imbalanced Cutting System
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Robot mower will not start mowing and displays E1 on the LCD or app.
|
Lift Sensor Triggered / Mower Lifted | View Details |
| E10 |
Robot mower shows E10 and stops; often associated with wheel speed anomalies.
|
Wheel Motor Sensor / Encoder Error | View Details |
| E11 |
Robot mower displays E11 and stops, often when starting a new job.
|
Battery Temperature Out of Range | View Details |
| E12 |
Robot mower shows E12 and will not operate; may be accompanied by no response from some sensors.
|
Sensor Bus / Peripheral Communication Failure | View Details |
| E13 |
Robot mower displays E13 and stops, often when blades are commanded to start.
|
Blade Motor Current Sensor Error | View Details |
| E14 |
Robot mower shows E14 and refuses to start; may be associated with app connectivity issues.
|
Security / PIN or Anti-Theft Lock Error | View Details |
| E15 |
Robot mower displays E15 and stops, often when using optional accessories like ultrasonic sensors.
|
Accessory Module Communication Error | View Details |
| E16 |
Robot mower shows E16 and stops; may occur when the mower is lifted near the charging base.
|
Docking Contact Short / Charging Fault | View Details |
| E17 |
Robot mower displays E17 and stops; often associated with GPS or Wi‑Fi models.
|
Connectivity / Cloud Communication Error | View Details |
| E18 |
Robot mower shows E18 and stops; may occur when the mower is manually moved.
|
Unexpected Movement / Anti-Theft Motion Error | View Details |
| E19 |
Robot mower displays E19 and stops; often when starting from the base after a long idle period.
|
RTC / Internal Clock Error | View Details |
| E2 |
Robot mower stops and displays E2, often shortly after starting or when turning.
|
Tilt Sensor Triggered / Excessive Incline | View Details |
| E20 |
Robot mower shows E20 and stops; may be associated with rain or wet grass.
|
Rain Sensor / Wet Condition Error | View Details |
| E3 |
Robot mower displays E3 and stops; may occur when approaching or leaving the charging base.
|
Charging Station / Docking Alignment Error | View Details |
| E4 |
Robot mower shows E4 and stops; blades do not spin or stop abruptly when encountering grass.
|
Blade Motor Overload / Blocked Cutting Disc | View Details |
| E5 |
Robot mower displays E5 and stops, often when wheels slip or get stuck.
|
Wheel Motor Overload / Wheel Blocked | View Details |
| E6 |
Robot mower shows E6 and will not start; often occurs when outside the boundary wire.
|
Out of Boundary / No Loop Signal Detected | View Details |
| E7 |
Robot mower displays E7 and stops, often when reversing or turning near obstacles.
|
Bumper / Collision Sensor Stuck | View Details |
| E8 |
Robot mower shows E8 and stops; may occur randomly during operation.
|
Internal Communication Error / Main Board Fault | View Details |
| E9 |
Robot mower displays E9 and refuses to start mowing from the charging base.
|
Charging Error / Battery Not Charging | View Details |
| – |
Robot mower base LED indicates loop OK, but mower will not start scheduled jobs (no error on display).
|
Scheduling / Timer Not Executing | View Details |
| – |
Robot mower cuts unevenly, leaving scalped patches and tall patches.
|
Uneven Cutting Height / Deck Level Issue | View Details |
| – |
Robot mower display or keypad does not respond, but the mower still charges.
|
User Interface Failure | View Details |
| – |
Robot mower does not detect rain and continues mowing in heavy rain despite having a rain sensor.
|
Rain Sensor Not Responding | View Details |
| – |
Robot mower does not return to the charging base and stops in the lawn with low battery.
|
Homing / Return-to-Base Failure | View Details |
| – |
Robot mower does not start at all; no display, no sounds, and does not respond when placed on the lawn.
|
No Power / Dead Mower | View Details |
| – |
Robot mower drains its battery while parked on the charging base and does not maintain charge.
|
Standby Power Drain / No Trickle Charge | View Details |
| – |
Robot mower emits a burning smell or shows signs of overheating without a specific error code.
|
Overheating / Electrical Overload | View Details |
| – |
Robot mower frequently reports being lifted or tilted in the app, but no error code is shown on the mower.
|
False Lift/Tilt Events | View Details |
| – |
Robot mower gets stuck frequently on small obstacles, roots, or uneven ground.
|
Frequent Stalling / Ground Clearance Issue | View Details |
| – |
Robot mower is very noisy during operation, with grinding or rattling sounds from underneath.
|
Mechanical Noise / Worn Bearings or Loose Components | View Details |
| – |
Robot mower leaves clumps of grass and the lawn looks messy after mowing.
|
Poor Mulching / Grass Discharge Issue | View Details |
| – |
Robot mower leaves uncut strips of grass or misses areas within the boundary.
|
Poor Coverage / Navigation Pattern Issue | View Details |
| – |
Robot mower occasionally loses connection to the Worx app or reports offline status while still mowing.
|
Intermittent Connectivity / Telemetry Dropouts | View Details |
| – |
Robot mower randomly restarts or reboots during operation without showing an error code.
|
Intermittent Power / Reset Issue | View Details |
| – |
Robot mower sometimes runs outside the boundary wire without stopping.
|
Boundary Detection Weak / Loop Sensor Sensitivity Issue | View Details |
| – |
Robot mower starts but stops after a few minutes without any error code, often returning to base prematurely.
|
Premature Return / Reduced Runtime | View Details |
| – |
Robot mower stops with blades off but wheels still trying to move, often on steep slopes.
|
Traction Loss / Wheel Slip | View Details |
| – |
Robot mower vibrates excessively or bounces while mowing.
|
Excessive Vibration / Imbalanced Cutting System | View Details |
No matching codes found
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