Kärcher Excessive Solution Flow

Fresh water tank empties very quickly and carpets are overly saturated.

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Possible Causes

Stuck-open solution valve, Incorrect detergent concentration, Damaged or enlarged spray jets, Faulty pump control

How to Fix / Troubleshooting

Safety first: Unplug the unit and remove the fresh water tank.

  • Inspect solution valve: Check the tank outlet valve and internal solution valve for debris preventing proper closure. Clean and ensure smooth operation.
  • Check spray jets: Remove the spray bar and inspect jets for damage or enlargement. Replace if jets are worn.
  • Use correct settings: Ensure you are not using a continuous spray mode unintentionally. Use trigger-controlled spray where available.
  • Adjust detergent mix: Follow Kärcher's recommended dilution to avoid excessive foaming and wetting.
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Repair Difficulty

Easy 2/5

Required Part

Solution Valve
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