Laresar No Power / Dead Robot

Robot vacuum will not power on at all; no lights or sounds.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Battery completely failed, Internal fuse blown, Power button failure, Main control board failure

How to Fix / Troubleshooting

Safety: Disconnect the dock from mains before working on the robot.

  • Check dock and outlet: Verify the dock has power and the outlet works by testing with another device.
  • Manual wake: Place the robot on the dock and leave it for at least 30 minutes, then press and hold the power button for 5–10 seconds.
  • Inspect battery connection: If comfortable, remove the bottom cover and ensure the battery connector is firmly plugged into the main board.
  • If still no response: The battery pack or main control board is likely defective and must be replaced.
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Repair Difficulty

Hard 4/5

Required Part

Laresar Robot Vacuum Battery Pack / Main Control Board
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