AL-KO Scheduling / Sensor Override Fault

Robot mower occasionally leaves the charging station during prohibited times (e.g., at night or during rain).

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Possible Causes

Incorrect schedule settings, Real-time clock error, Faulty rain sensor, Firmware bug

How to Fix / Troubleshooting

Safety first: Ensure the mower is not operating in unsafe conditions such as thunderstorms or extreme weather.

  • Review schedule: Check the mowing schedule in the menu or app. Disable any additional schedules or test programs.
  • Check time and date: Verify that the internal clock is set correctly. Adjust if necessary.
  • Test rain sensor: Simulate rain by gently wetting the rain sensor (if external) and confirm the mower responds appropriately. Clean the sensor if dirty.
  • Firmware update: Install any available firmware updates from AL-KO that may address scheduling issues.
  • Sensor replacement: If the mower ignores rain or schedule settings, replace the rain sensor or have the main PCB checked.
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Repair Difficulty

Easy 2/5

Required Part

Rain Sensor or Main Control PCB
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