Step by step.
Try the following troubleshooting steps:
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Ensure that the charger is working correctly. Charge the robot for a full charging cycle, until the power unit LED shows 3 steady LEDs.
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Ensure the robot is fully submerged in the water for proper operation. Place the robot in the water within 30 seconds after starting it.
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Clean the filter cartridges.
- Check the tracks to see if any debris is stuck there.
Make sure the robot is unplugged, turn the robot upside down, and check the tracks and brushes for any obstructions or visible damage.
- For the Liberty 300/400, verify that the Eco Mode is not set. To cancel Eco Mode, remove the robot from the pool and connect it to the charger.
After completing the troubleshooting steps, is it still not working? Contact Customer Care contact us.
Source: Maytronics support. Rewritten for clarity with the same steps; the videos and illustrations are Maytronics' own.