JennAir
Under-Tub / Sump or Hose Leak
Dishwasher leaks from underneath; water appears under the unit or at the sides of the cabinet.
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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
Cracked sump assembly, Loose or cracked drain hose, Leaking circulation pump seal, Loose hose clamps
How to Fix / Troubleshooting
Safety: Turn off power and water immediately. Place towels around the base.
- Pull out dishwasher: Carefully slide the unit out from the cabinet to inspect the underside.
- Identify leak source: Run a short fill and wash while observing with a flashlight. Look for drips from hoses, pump seals, or the sump.
- Tighten clamps: Tighten any loose hose clamps and replace any hoses that show cracks or bulges.
- Sump/pump assembly: If the sump is cracked or the pump seal is leaking, replace the sump and pump assembly as a unit per JennAir parts guidance.
Warning: Do not continue using a leaking dishwasher; water can damage flooring and nearby cabinetry.
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Repair Difficulty
Hard
4/5
Required Part
Sump and Pump Assembly
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