Robomow
Robomow 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
Robomow will not start mowing and displays E1 on the panel or app.
Main Power Supply / Battery Not Connected
E10
Robomow displays E10 and refuses to start mowing after being stored or after a long period of non‑use.
Battery Voltage Too Low / Deep Discharge
E11
Robomow shows E11 and stops, often when the blade is starting or under heavy load.
Blade Motor Overcurrent / Short Circuit
E12
Robomow displays E12 and stops, sometimes accompanied by erratic movement or spinning in place.
Drive Motor Overcurrent / Short Circuit
E13
Robomow shows E13 and stops, often when reversing or turning near obstacles.
Wheel Encoder / Speed Sensor Fault
E14
Robomow displays E14 and will not start; may occur after firmware update or battery replacement.
Main Board Communication / Internal Error
E15
Robomow shows E15 and stops, often when docking or leaving the base station.
Docking Alignment / Base Station Sensor Fault
E16
Robomow displays E16 and stops, often after hitting a hard obstacle or curb.
Chassis Impact / Internal Shock Detected
E17
Robomow shows E17 and stops, often in very hot weather or after long mowing sessions.
Overtemperature Protection Activated
E18
Robomow displays E18 and stops, sometimes accompanied by erratic behavior or random resets.
Low Internal Logic Voltage / Power Regulation Fault
E19
Robomow shows E19 and will not start scheduled mowing cycles, though manual start may work.
Time / Schedule Configuration Error
E2
Robomow displays E2 and will not leave the base station or stops shortly after starting.
Charging Circuit / Base Station Communication Fault
E20
Robomow displays E20 and stops, often when transitioning between main area and sub‑zones.
Perimeter / Sub‑Zone Transition Error
E3
Robomow shows E3 and refuses to start mowing, often after being moved or bumped.
Tilt / Lift Sensor Activation
E4
Robomow displays E4 and stops mowing, often when encountering obstacles or on uneven terrain.
Bumper / Obstacle Sensor Fault
E5
Robomow shows E5 and stops with the blade not turning or turning erratically.
Blade Motor Overload / Stall
E6
Robomow displays E6 and stops, often when turning or on slopes.
Drive Motor Overload / Stall
E7
Robomow shows E7 and will not start mowing; often appears when the mower is away from the base station.
No Perimeter Wire Signal Detected
E8
Robomow displays E8 and stops near the perimeter wire or base station.
Perimeter Wire Short / Disturbance
E9
Robomow shows E9 and stops, often after a collision or when the mower is lifted.
Safety Stop / Emergency Stop Activated
Symptom
Robomow app cannot connect to the mower via Bluetooth or Wi‑Fi.
Wireless Communication Failure
Symptom
Robomow base station LED blinks or changes color indicating a fault, but the mower shows no specific error code.
Base Station / Perimeter Transmitter Fault
Symptom
Robomow blade does not spin at all, but the mower moves around the lawn.
Blade Drive Failure
Symptom
Robomow cuts unevenly, leaving scalped patches and high spots.
Uneven Cutting Height / Deck Misalignment
Symptom
Robomow display or keypad buttons do not respond, but the mower still charges.
User Interface / Keypad Failure
Symptom
Robomow does not return to the base station to charge and stops in the lawn with a low battery.
Failed Return‑to‑Base Navigation
Symptom
Robomow does not start at all (no display, no beeps, no response) even when placed on the base station.
Complete Power Loss
Symptom
Robomow emits a burning smell or shows signs of overheating around the motor area.
Motor Overheating / Insulation Breakdown
Symptom
Robomow frequently gets stuck or immobilized on small obstacles, roots, or uneven ground.
Poor Traction / Ground Clearance Issue
Symptom
Robomow frequently tips or lifts its front end when climbing small obstacles.
Front Stability / Balance Issue
Symptom
Robomow is very noisy during operation, with grinding or rattling sounds from underneath.
Mechanical Noise from Blade or Drive System
Symptom
Robomow leaves the lawn area and crosses the perimeter wire boundary.
Perimeter Detection Failure
Symptom
Robomow leaves uncut strips of grass or misses areas within the perimeter.
Poor Cutting Coverage / Navigation Pattern Issue
Symptom
Robomow randomly stops and restarts or reboots during mowing without showing a clear error.
Intermittent Power / Electronics Fault
Symptom
Robomow shows condensation inside the display or housing after rain, and behaves erratically.
Moisture Ingress / Water Damage Risk
Symptom
Robomow starts but stops after a few minutes with no specific error code, often returning to the base prematurely.
Reduced Battery Capacity / Early Low‑Charge Return
Symptom
Robomow stops mowing when it encounters light obstacles like tall grass or small branches, instead of pushing through.
Over‑Sensitive Obstacle Detection
Symptom
Robomow vibrates excessively or shakes while mowing.
Excessive Vibration from Cutting System
Symptom
Robomow wheels spin but the mower does not move or moves very slowly.
Loss of Traction / Drive Coupling Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Robomow will not start mowing and displays E1 on the panel or app.
|
Main Power Supply / Battery Not Connected | View Details |
| E10 |
Robomow displays E10 and refuses to start mowing after being stored or after a long period of non‑use.
|
Battery Voltage Too Low / Deep Discharge | View Details |
| E11 |
Robomow shows E11 and stops, often when the blade is starting or under heavy load.
|
Blade Motor Overcurrent / Short Circuit | View Details |
| E12 |
Robomow displays E12 and stops, sometimes accompanied by erratic movement or spinning in place.
|
Drive Motor Overcurrent / Short Circuit | View Details |
| E13 |
Robomow shows E13 and stops, often when reversing or turning near obstacles.
|
Wheel Encoder / Speed Sensor Fault | View Details |
| E14 |
Robomow displays E14 and will not start; may occur after firmware update or battery replacement.
|
Main Board Communication / Internal Error | View Details |
| E15 |
Robomow shows E15 and stops, often when docking or leaving the base station.
|
Docking Alignment / Base Station Sensor Fault | View Details |
| E16 |
Robomow displays E16 and stops, often after hitting a hard obstacle or curb.
|
Chassis Impact / Internal Shock Detected | View Details |
| E17 |
Robomow shows E17 and stops, often in very hot weather or after long mowing sessions.
|
Overtemperature Protection Activated | View Details |
| E18 |
Robomow displays E18 and stops, sometimes accompanied by erratic behavior or random resets.
|
Low Internal Logic Voltage / Power Regulation Fault | View Details |
| E19 |
Robomow shows E19 and will not start scheduled mowing cycles, though manual start may work.
|
Time / Schedule Configuration Error | View Details |
| E2 |
Robomow displays E2 and will not leave the base station or stops shortly after starting.
|
Charging Circuit / Base Station Communication Fault | View Details |
| E20 |
Robomow displays E20 and stops, often when transitioning between main area and sub‑zones.
|
Perimeter / Sub‑Zone Transition Error | View Details |
| E3 |
Robomow shows E3 and refuses to start mowing, often after being moved or bumped.
|
Tilt / Lift Sensor Activation | View Details |
| E4 |
Robomow displays E4 and stops mowing, often when encountering obstacles or on uneven terrain.
|
Bumper / Obstacle Sensor Fault | View Details |
| E5 |
Robomow shows E5 and stops with the blade not turning or turning erratically.
|
Blade Motor Overload / Stall | View Details |
| E6 |
Robomow displays E6 and stops, often when turning or on slopes.
|
Drive Motor Overload / Stall | View Details |
| E7 |
Robomow shows E7 and will not start mowing; often appears when the mower is away from the base station.
|
No Perimeter Wire Signal Detected | View Details |
| E8 |
Robomow displays E8 and stops near the perimeter wire or base station.
|
Perimeter Wire Short / Disturbance | View Details |
| E9 |
Robomow shows E9 and stops, often after a collision or when the mower is lifted.
|
Safety Stop / Emergency Stop Activated | View Details |
| – |
Robomow app cannot connect to the mower via Bluetooth or Wi‑Fi.
|
Wireless Communication Failure | View Details |
| – |
Robomow base station LED blinks or changes color indicating a fault, but the mower shows no specific error code.
|
Base Station / Perimeter Transmitter Fault | View Details |
| – |
Robomow blade does not spin at all, but the mower moves around the lawn.
|
Blade Drive Failure | View Details |
| – |
Robomow cuts unevenly, leaving scalped patches and high spots.
|
Uneven Cutting Height / Deck Misalignment | View Details |
| – |
Robomow display or keypad buttons do not respond, but the mower still charges.
|
User Interface / Keypad Failure | View Details |
| – |
Robomow does not return to the base station to charge and stops in the lawn with a low battery.
|
Failed Return‑to‑Base Navigation | View Details |
| – |
Robomow does not start at all (no display, no beeps, no response) even when placed on the base station.
|
Complete Power Loss | View Details |
| – |
Robomow emits a burning smell or shows signs of overheating around the motor area.
|
Motor Overheating / Insulation Breakdown | View Details |
| – |
Robomow frequently gets stuck or immobilized on small obstacles, roots, or uneven ground.
|
Poor Traction / Ground Clearance Issue | View Details |
| – |
Robomow frequently tips or lifts its front end when climbing small obstacles.
|
Front Stability / Balance Issue | View Details |
| – |
Robomow is very noisy during operation, with grinding or rattling sounds from underneath.
|
Mechanical Noise from Blade or Drive System | View Details |
| – |
Robomow leaves the lawn area and crosses the perimeter wire boundary.
|
Perimeter Detection Failure | View Details |
| – |
Robomow leaves uncut strips of grass or misses areas within the perimeter.
|
Poor Cutting Coverage / Navigation Pattern Issue | View Details |
| – |
Robomow randomly stops and restarts or reboots during mowing without showing a clear error.
|
Intermittent Power / Electronics Fault | View Details |
| – |
Robomow shows condensation inside the display or housing after rain, and behaves erratically.
|
Moisture Ingress / Water Damage Risk | View Details |
| – |
Robomow starts but stops after a few minutes with no specific error code, often returning to the base prematurely.
|
Reduced Battery Capacity / Early Low‑Charge Return | View Details |
| – |
Robomow stops mowing when it encounters light obstacles like tall grass or small branches, instead of pushing through.
|
Over‑Sensitive Obstacle Detection | View Details |
| – |
Robomow vibrates excessively or shakes while mowing.
|
Excessive Vibration from Cutting System | View Details |
| – |
Robomow wheels spin but the mower does not move or moves very slowly.
|
Loss of Traction / Drive Coupling Failure | View Details |
No matching codes found
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