Frigidaire Professional No Drain / Poor Drainage

Dishwasher does not drain; standing water remains in the bottom after cycle completes.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Clogged drain filter or sump, Blocked or kinked drain hose, Obstructed air gap or garbage disposal inlet, Failed drain pump

How to Fix / Troubleshooting

Safety First: Disconnect power before working under the unit. Water may be dirty; wear gloves.

  • Remove standing water: Use a cup or sponge to remove as much water from the tub as possible.
  • Clean filters and sump: Remove the lower rack and filters. Clear any food debris or foreign objects from the sump area.
  • Inspect drain hose: Check the hose under the sink and behind the dishwasher for kinks or clogs. Detach from the sink/disposal and flush with water.
  • Check air gap/disposal: Clean the air gap if present. Ensure the disposal inlet is clear and the knockout plug was removed at installation.
  • Test drain pump: Start a cancel/drain cycle. If the pump hums but does not move water, or is silent, the pump may be failed and should be replaced.
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Repair Difficulty

Medium 3/5

Required Part

Drain Pump
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