E18
KitchenAid Water Filter or Water Quality Sensor Fault

Ice maker indicates low water quality or filter error

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Possible Causes

Clogged water filter, expired filter cartridge, failed water quality sensor, incorrect filter installation

How to Fix / Troubleshooting

Safety: Turn off water supply before removing the filter.

  • Replace filter: Install a new OEM KitchenAid water filter cartridge, ensuring it is fully seated and locked.
  • Flush system: Run water through the system (if applicable) to remove air and carbon fines.
  • Reset filter indicator: Follow the user manual to reset the filter status on the control panel.
  • Inspect sensor: If your model uses a water quality sensor, check its wiring and clean any scale from the sensor body.
  • Test operation: After replacement, allow several cycles to confirm normal ice production.
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Repair Difficulty

Easy 2/5

Required Part

Water Filter Cartridge
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