Roborock Excessive Water Flow or Valve Stuck Open

Robot vacuum’s mop pad is excessively wet, soaking carpets or leaving large puddles.

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Possible Causes

Water flow set to maximum on sensitive floors, Water valve not closing fully, Damaged or missing tank gasket, Non-original tank with poor control

How to Fix / Troubleshooting

Safety first: Remove the mop pad and water tank immediately to prevent water damage to floors and robot.

Step-by-step:

  • Lower flow setting: In the app, reduce water flow to low or medium.
  • Inspect tank for leaks: Fill the tank and observe if water drips out when not installed. Replace the tank if it leaks.
  • Avoid carpets: Set no-mop zones over carpets in the app.

If water continues to flow excessively only when installed, the internal valve or pump control may be faulty and require tank or pump replacement.

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Repair Difficulty

Easy 2/5

Required Part

Mop Water Tank Assembly
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