Whirlpool Poor Wash Performance / Low Spray Pressure

Dishwasher runs but dishes are not getting clean; food remains on plates and glasses are cloudy.

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Possible Causes

Clogged spray arm jets, Dirty filters, Low water level due to inlet issues, Faulty OWI/turbidity sensor causing short cycles

How to Fix / Troubleshooting

Safety First: Turn off power and water if removing major components; for basic cleaning, power can remain on but controls off.

  • Clean spray arms: Remove upper and lower spray arms and flush them under running water. Use a toothpick to clear blocked jets.
  • Clean filters and sump: Remove and rinse filters; check sump for debris.
  • Check water level: After fill, open the door mid-cycle. Water should typically reach just below the heating element. If low, inspect the inlet valve and supply.
  • Use proper detergent: Use high-quality dishwasher detergent and ensure rinse aid is filled.
  • Clean OWI sensor: If equipped, clean the OWI lens in the sump to ensure accurate soil sensing.
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Repair Difficulty

Easy 2/5

Required Part

Spray Arms, Filters, or OWI Sensor
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