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Troubleshooting Code Reference

Operation message

Message Code Cause Solution
N01 When the battery level is between 0% and 8%, TerraMow will not respond to commands or return to the base station automatically. Please manually carry your TerraMow back to the base station.
N02 When powered on and the battery level falls below 5%, TerraMow will automatically shut down due to low battery level. Please manually carry your TerraMow back to the base station.
N03 When the power switch is off, it is not possible to initiate mowing or mapping. Turn on the power switch located at the bottom of your TerraMow.
N10 The upgrade cannot proceed because the hardware switch is not turned on. Turn on the power switch located at the bottom of your TerraMow.
N22 The upgrade cannot proceed because the battery level is below 30%. Wait until the battery level is above 30% before attempting to upgrade.
N23 The upgrade cannot proceed because it is not charging at the base station. Please manually carry your TerraMow back to the charging station.
N30 When TerraMow is operating (not in Spot Mode) and the battery level falls below 15%, it will automatically trigger a return to the base station for recharging. TerraMow will return to the base station and charge automatically, don't worry about it.
N34 Upon starting, if the vision sensor detects dirt, potentially caused by water mist, TerraMow will endeavor to heat up to clear the mist. Please wait for your TerraMow to automatically complete the defogging process.
N35 When TerraMow attempts to start mowing, it detects insufficient ambient light levels and cannot proceed. Please ensure there is adequate lighting in TerraMow’s working environment before attempting to start mowing.
N36 When TerraMow attempts to start mowing, it detects rain and cannot proceed. Please wait until the rain stops before attempting to start mowing.
N37 During mowing, if rain is detected, the TerraMow automatically returns to the base station. Please wait until the rain stops before resuming mowing.
N38 When TerraMow attempts to start working, the CPU temperature exceeds 90 degrees Celsius, preventing it from initiating the task. The environment may be overheated. Please contact customer service for assistance.
N39 While operating, if TerraMow's CPU temperature exceeds 100 degrees Celsius, it will automatically return to the base station. The environment may be overheated. Please contact customer service for assistance.
N42 Mowing or mapping cannot resume when the battery is below 15%. Ensure the battery level is above 15% before resuming mowing or mapping.
N44 During mowing, the current scheduled mowing will not be executed.  
N47 Mapping failed. Ensure your lawn has been prepared correctly according to the instructions. Once ready, place your TerraMow on the base station to retry or resume the mapping process.
N50 Positioning failed Place your TerraMow in a previously visited location and resume the task. Your TerraMow will attempt to relocate itself. If unsuccessfulit, please manually carry your TerraMow to the base station and restart.
N51 The scheduled time has arrived, but the brightness is too low. TerraMow will start mowing once the light level is adequate.
N52 Mapping area limit reached. Task nearing completion. For larger working areas, consider models with expanded coverage capabilities.
N55 Please place TerraMow on the base station to start mapping or mowing. Please manually carry your TerraMow back to the base station.
N57 While operating, it was discovered that the vision sensor was dirty, possibly due to water mist. Attempting to stop in place, heat up to clear the mist, and then continue working. Please wait for your TerraMow to automatically complete the defogging process.
N64 When the battery level is below 15%, starting the mowing process is not possible due to the low battery level. Wait until the battery level is above 15% before attempting to start mowing or mapping.
N86 Log upload failed. Retry. If the problem persists, please contact customer service.
N87 Press the STOP button on the TerraMow. Regardless of the task, it will immediately stop moving, turn off the blade disc, and enter a paused state.  
N90 Spot mode mowing is initiated off the lawn, or TerraMow is lifted during mowing without being returned to the lawn. Place the TerraMow on the lawn ensuring it is facing the grass, then let it continue working.
N92 Failed to save the map. Please click on "upload log" in the App and contact customer service for assistance.
N94 When TerraMow is operating in Spot Mode and the battery level falls below 15%, it will automatically trigger a return to the starting point. None.
N95 If it becomes too dark or sunset is approaching, TerraMow will automatically return to the base station or the starting point of Spot Mode. None.
N96 TerraMow is currently saving the map and cannot be operated on. Please try again later. Please wait patiently for the TerraMow to finish saving the map.
N98 TerraMow is processing data and cannot be operated now. Please try again later. Please wait patiently for the TerraMow to complete data processing.
N99 Spot mode mowing cannot be initiated while TerraMow is at the base station. Remove the TerraMow from the base station and place it on the lawn where you want to perform Spot Mode mowing, then try to start Spot Mode mowing again.

 

Fault codes

Fault Code Cause Solution
E0001 Blade disc obstructed by foreign objects. Please check if there are any foreign objects blocking or entangled with the blade disc. After clearing the foreign objects, please try again. If this error persists after removing the foreign objects, please contact customer service for assistance.
E0002 Blade disc motor fault. Please restart your TerraMow and try again. If the issue persists after restarting, please contact customer service.
E0003 Blade disc obstructed by foreign objects or motor overheating due to excessive load. Please check if there are any foreign objects blocking or entangled with the blade disc. After clearing the foreign objects, please try again. If this error persists after removing the foreign objects, it may be due to the lawn causing an excessive load on the mower. Please use other tools to cut the grass to 7cm height first.
E0004 Blade disc motor fault detected. Please restart your TerraMow. If the issue persists after restarting, please contact customer service.
E0005 The blade disc motor is overheating. Mowing will resume once the temperature returns to normal. Please wait patiently for the blade disc motor to cool down.
E0101 The blade disc height adjustment motor is blocked and cannot reach the preset height. Please check if there are any foreign objects stuck in the blade disc adjustment mechanism.
E0102 Blade disc adjustment motor fault detected. Please restart your TerraMow. If the issue persists after restarting, please contact customer service.
E0103 The blade disc height adjustment motor is obstructed. Please check if there are any foreign objects stuck in the blade disc adjustment mechanism.
E0201 TerraMow has been lifted while working. Please place your TerraMow back on the ground.
E0202 TerraMow has been lifted and cannot start working. Please place your TerraMow back on the ground.
E0301 The safety key is not detected. Please check if the safety is correctly inserted into the enabled position.
E0401 TerraMow is tilted at an excessive angle while working. Please place your TerraMow back on level ground.
E0402 TerraMow is tilted at an excessive angle and cannot start working. Please place your TerraMow back on level ground.
E0403 IMU fault detected. Unable to continue operation. Please restart your TerraMow. If the issue persists after restarting, please contact customer service.
E0501 The driving wheel is blocked by a foreign object. Please check if there are any foreign objects entangled or blocking the driving wheel. After removing them, you can continue mowing.
E0502 Driving wheel motor fault detected. Please restart your TerraMow. If the issue persists after restarting, please contact customer service.
E0503 Driving wheel motor fault detected. Please restart your TerraMow. If the issue persists after restarting, please contact customer service.
E0504 The temperature of the driving wheel motor is too high to continue working. Please wait for 10 minutes to allow the motor to cool down before attempting to restart your TerraMow.
E0505 The driving wheel motor temperature is too high. Your TerraMow will resume working once the temperature returns to normal.
E0601 Battery fault (under-voltage). Please restart your TerraMow. If the issue persists after restarting, please contact customer service.
E0602 Battery fault (temperature cannot be detected). Please restart your TerraMow. If the issue persists after restarting, please contact customer service.
E0603 Battery temperature is out of the operating range. Your TerraMow will resume operation once the temperature returns to normal.
E0604 Battery fault (battery cannot be detected). Please restart the machine. If the issue persists after restarting, please contact customer service. Please restart your TerraMow. If the issue persists after restarting, please contact customer service.
E0701 The charging port voltage is too low. Please clean the charging ports at the base station, remove any foreign objects and wipe away moisture. Check if the power adapter is short-circuited or if the plug connections are short-circuited.
E0801 Vision sensor malfunction. Please restart your TerraMow. If the issue persists after restarting, please contact customer service.
E0802 Vision sensor malfunction. Please restart your TerraMow. If the issue persists after restarting, please contact customer service.
E0803 The vision sensor is dirty or occluded. Please clean the vision sensor and the base station marker.
E0902 A significant height difference has been detected near TerraMow. For safety, please keep TerraMow away from the edge.
E0903 TerraMow is stuck. Please clear obstacles around TerraMow or create a no-go zone around the obstacles.
E0904 TerraMow cannot reach the target area. Please clear any obstacles along the path to the target area.
E0905 TerraMow is unable to return to the base station. Please manually carry your TerraMow back to the base station.
E0906 TerraMow cannot return to the base station due to obstacles around the base station that hinder its return. Please clear any obstacles around the base station and then continue the task.
E0908 When attempting to start mapping, your TerraMow is not on the base station. Please place TerraMow back on the base station and ensure it is charging before starting the mapping task.
E0910 TerraMow has returned to the base station but found that it is not receiving power. Please check if the base station is properly connected to the power supply and ensure that the charging pins are clean.
E1400 TerraMow's collision sensor is stuck. Please check if the bumper is stuck by an obstacle.
E1404 TerraMow is in factory mode and cannot be used. Please restore factory settings to exit factory mode.
E1406 TerraMow's processor is overheated. Please manually carry your TerraMow back to the base station.
E1408 The base station is not facing the lawn or is too far from the lawn. Please adjust the position and orientation of the base station so that its front faces the lawn.
E1409 TerraMow has moved beyond the physical fence area and may have been stolen. Please confirm whether your TerraMow has been stolen or mistakenly placed outside of the working lawn.
E1410 TerraMow's GPS module is malfunctioning. Please restart your TerraMow. If the issue persists after restarting, please contact customer service.
E1411 TerraMow's processor is malfunctioning. Please restart your TerraMow. If the issue persists after restarting, please contact customer service.
E1412 TerraMow's 4G module is malfunctioning. Please restart your TerraMow. If the issue persists after restarting, please contact customer service.