McCulloch
McCulloch 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; display shows E1 and mower stops immediately when START is pressed.
Main Stop Switch / Emergency Stop Activated
E10
Robot mower shows E10 and will not start; often after battery replacement or long storage.
Battery Communication / Battery Not Recognized
E11
Display shows E11 and mower stops; may be associated with sudden shutdowns.
Low Battery Voltage / Battery Protection Triggered
E12
Robot mower shows E12 and stops; often related to keypad or cover.
Keypad / Control Panel Error
E13
Display shows E13 and mower stops; may occur when the cover is opened or closed.
Cover / Hood Switch Error
E14
Robot mower shows E14 and will not operate; often after firmware update or power surge.
Main PCB Internal Error
E15
Display shows E15 and mower stops; often related to wheel speed or direction.
Wheel Motor Speed Sensor Error
E16
Robot mower shows E16 and stops; may occur when reversing or turning.
Wheel Motor Direction / Overcurrent Error
E17
Display shows E17 and mower stops; often when blades are starting.
Cutting Motor Speed Sensor Error
E18
Robot mower shows E18 and stops; may be associated with boundary or guide wire following.
Guide Wire Signal Error
E19
Display shows E19 and mower stops; often related to internal temperature.
Overtemperature Protection Activated
E2
Robot mower displays E2 and will not start cutting cycle.
Main Power Switch Off / Power Supply Interruption
E20
Robot mower shows E20 and will not start; often after incorrect PIN entry.
Security Lock / PIN Code Error
E3
Display shows E3 and mower refuses to start or stops shortly after starting.
Lift Sensor Activated / Mower Lifted
E4
Robot mower shows E4 and stops immediately when trying to start or during operation.
Tilt Sensor Activated / Excessive Incline
E5
Display shows E5 and the mower will not start cutting.
Collision Sensor / Bumper Stuck
E6
Robot mower displays E6 and stops; may occur when starting or during mowing.
Mower Outside Boundary Loop / No Loop Signal
E7
Display shows E7 and mower stops or refuses to start; often associated with wheel issues.
Drive Motor Overload / Wheel Blocked
E8
Robot mower shows E8 and stops; blade disc may not be turning.
Cutting Motor Overload / Blocked Blade Disc
E9
Display shows E9 and mower stops, often when approaching or leaving the charging station.
Charging Station Alignment / Docking Error
Symptom
Robot mower blades continue to spin for an unusually long time after lifting or pressing STOP.
Blade Brake / Safety Stop Delay
Symptom
Robot mower display is blank or very dim, but the mower still appears to operate.
Display Backlight / LCD Failure
Symptom
Robot mower does not charge when parked in the charging station.
No Charging / Contact Failure
Symptom
Robot mower does not return to the charging station and stops with an empty battery.
Return-to-Base / Guide Navigation Fault
Symptom
Robot mower emits a burning smell or shows signs of overheating around the motor area.
Electrical Overheating / Motor or PCB Failure
Symptom
Robot mower frequently gets stuck or spins its wheels without moving forward.
Traction Loss / Wheel Slippage
Symptom
Robot mower frequently reports that it is outside the working area even though it is within the boundary.
Boundary Detection Sensitivity Issue
Symptom
Robot mower frequently reports that the cutting height adjustment is blocked or does not change height properly.
Cutting Height Mechanism Jam
Symptom
Robot mower housing shows cracks or deformation, affecting sensor alignment and operation.
Chassis / Housing Damage
Symptom
Robot mower is excessively noisy during operation compared to normal.
Mechanical Noise / Bearing or Blade Fault
Symptom
Robot mower is unusually slow or struggles to climb slopes it previously handled.
Reduced Drive Performance / Weak Motors or Battery
Symptom
Robot mower keypad buttons are unresponsive or register multiple presses.
Keypad Contact Wear / Contamination
Symptom
Robot mower leaves patches of uncut grass because the blades are not cutting cleanly.
Poor Cutting Performance / Dull or Broken Blades
Symptom
Robot mower leaves uncut strips of grass and misses areas within the boundary.
Poor Coverage / Navigation Pattern Fault
Symptom
Robot mower occasionally loses time or schedule settings after being powered off.
Real-Time Clock / Memory Retention Issue
Symptom
Robot mower occasionally stops with the front lifted or stuck on obstacles like roots or edging.
Ground Clearance / Obstacle Handling Issue
Symptom
Robot mower randomly restarts or shuts down during operation without an error code.
Intermittent Power Loss / Loose Connection
Symptom
Robot mower underside is heavily packed with grass, causing poor performance and overheating.
Deck Clogging / Poor Grass Ejection
Symptom
Robot mower wheels wobble excessively or have noticeable play.
Wheel Axle / Bearing Wear
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Robot mower will not start; display shows E1 and mower stops immediately when START is pressed.
|
Main Stop Switch / Emergency Stop Activated | View Details |
| E10 |
Robot mower shows E10 and will not start; often after battery replacement or long storage.
|
Battery Communication / Battery Not Recognized | View Details |
| E11 |
Display shows E11 and mower stops; may be associated with sudden shutdowns.
|
Low Battery Voltage / Battery Protection Triggered | View Details |
| E12 |
Robot mower shows E12 and stops; often related to keypad or cover.
|
Keypad / Control Panel Error | View Details |
| E13 |
Display shows E13 and mower stops; may occur when the cover is opened or closed.
|
Cover / Hood Switch Error | View Details |
| E14 |
Robot mower shows E14 and will not operate; often after firmware update or power surge.
|
Main PCB Internal Error | View Details |
| E15 |
Display shows E15 and mower stops; often related to wheel speed or direction.
|
Wheel Motor Speed Sensor Error | View Details |
| E16 |
Robot mower shows E16 and stops; may occur when reversing or turning.
|
Wheel Motor Direction / Overcurrent Error | View Details |
| E17 |
Display shows E17 and mower stops; often when blades are starting.
|
Cutting Motor Speed Sensor Error | View Details |
| E18 |
Robot mower shows E18 and stops; may be associated with boundary or guide wire following.
|
Guide Wire Signal Error | View Details |
| E19 |
Display shows E19 and mower stops; often related to internal temperature.
|
Overtemperature Protection Activated | View Details |
| E2 |
Robot mower displays E2 and will not start cutting cycle.
|
Main Power Switch Off / Power Supply Interruption | View Details |
| E20 |
Robot mower shows E20 and will not start; often after incorrect PIN entry.
|
Security Lock / PIN Code Error | View Details |
| E3 |
Display shows E3 and mower refuses to start or stops shortly after starting.
|
Lift Sensor Activated / Mower Lifted | View Details |
| E4 |
Robot mower shows E4 and stops immediately when trying to start or during operation.
|
Tilt Sensor Activated / Excessive Incline | View Details |
| E5 |
Display shows E5 and the mower will not start cutting.
|
Collision Sensor / Bumper Stuck | View Details |
| E6 |
Robot mower displays E6 and stops; may occur when starting or during mowing.
|
Mower Outside Boundary Loop / No Loop Signal | View Details |
| E7 |
Display shows E7 and mower stops or refuses to start; often associated with wheel issues.
|
Drive Motor Overload / Wheel Blocked | View Details |
| E8 |
Robot mower shows E8 and stops; blade disc may not be turning.
|
Cutting Motor Overload / Blocked Blade Disc | View Details |
| E9 |
Display shows E9 and mower stops, often when approaching or leaving the charging station.
|
Charging Station Alignment / Docking Error | View Details |
| – |
Robot mower blades continue to spin for an unusually long time after lifting or pressing STOP.
|
Blade Brake / Safety Stop Delay | View Details |
| – |
Robot mower display is blank or very dim, but the mower still appears to operate.
|
Display Backlight / LCD Failure | View Details |
| – |
Robot mower does not charge when parked in the charging station.
|
No Charging / Contact Failure | View Details |
| – |
Robot mower does not return to the charging station and stops with an empty battery.
|
Return-to-Base / Guide Navigation Fault | View Details |
| – |
Robot mower emits a burning smell or shows signs of overheating around the motor area.
|
Electrical Overheating / Motor or PCB Failure | View Details |
| – |
Robot mower frequently gets stuck or spins its wheels without moving forward.
|
Traction Loss / Wheel Slippage | View Details |
| – |
Robot mower frequently reports that it is outside the working area even though it is within the boundary.
|
Boundary Detection Sensitivity Issue | View Details |
| – |
Robot mower frequently reports that the cutting height adjustment is blocked or does not change height properly.
|
Cutting Height Mechanism Jam | View Details |
| – |
Robot mower housing shows cracks or deformation, affecting sensor alignment and operation.
|
Chassis / Housing Damage | View Details |
| – |
Robot mower is excessively noisy during operation compared to normal.
|
Mechanical Noise / Bearing or Blade Fault | View Details |
| – |
Robot mower is unusually slow or struggles to climb slopes it previously handled.
|
Reduced Drive Performance / Weak Motors or Battery | View Details |
| – |
Robot mower keypad buttons are unresponsive or register multiple presses.
|
Keypad Contact Wear / Contamination | View Details |
| – |
Robot mower leaves patches of uncut grass because the blades are not cutting cleanly.
|
Poor Cutting Performance / Dull or Broken Blades | View Details |
| – |
Robot mower leaves uncut strips of grass and misses areas within the boundary.
|
Poor Coverage / Navigation Pattern Fault | View Details |
| – |
Robot mower occasionally loses time or schedule settings after being powered off.
|
Real-Time Clock / Memory Retention Issue | View Details |
| – |
Robot mower occasionally stops with the front lifted or stuck on obstacles like roots or edging.
|
Ground Clearance / Obstacle Handling Issue | View Details |
| – |
Robot mower randomly restarts or shuts down during operation without an error code.
|
Intermittent Power Loss / Loose Connection | View Details |
| – |
Robot mower underside is heavily packed with grass, causing poor performance and overheating.
|
Deck Clogging / Poor Grass Ejection | View Details |
| – |
Robot mower wheels wobble excessively or have noticeable play.
|
Wheel Axle / Bearing Wear | View Details |
No matching codes found
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