Lefant Water Tank Over-Dispensing / Leak

Robot vacuum leaves wet streaks or puddles when mopping, or water continues to drip when docked.

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Possible Causes

Water tank valve stuck open, Damaged or missing tank gasket, Cracked water tank body, Incorrect mop pad installation wicking excess water

How to Fix / Troubleshooting

Safety: Turn OFF the robot and remove the water tank immediately to prevent water from entering the electronics.

  • Step 1 – Inspect tank exterior: Check for visible cracks or leaks by filling the tank over a sink and observing for drips.
  • Step 2 – Check gaskets and valves: Inspect rubber seals around the outlet and any flow control valves. Replace the tank if seals are damaged or missing.
  • Step 3 – Mop pad installation: Ensure the mop pad is properly attached and not folded or bunched, which can cause uneven water distribution.
  • Step 4 – Storage: Remove the water tank when the robot is not in use or charging to prevent long-term dripping.
  • Repair: Replace the water tank assembly if it continues to leak or over-dispense water.
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Repair Difficulty

Easy 2/5

Required Part

Water Tank Assembly
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