Waste King Internal Seal Failure / Housing Crack

Garbage disposal runs but water leaks from the electrical compartment cover or bottom plate.

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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

Failed lower shaft seal, Crack in grinding chamber, Long-term corrosion from minor leaks, Overheating deforming seals

How to Fix / Troubleshooting

Safety first: Immediately turn OFF power at the breaker and unplug the disposal. Water in the electrical compartment is a shock hazard.

  • Step 1 – Confirm leak source: Dry the area and run water into the sink without operating the disposal. If water drips from the bottom plate or electrical cover, the internal seals are compromised.
  • Step 2 – Do not attempt internal repair: The grinding chamber and motor housing are factory-sealed. Internal seals are not user-serviceable.
  • Step 3 – Remove and replace: Disconnect power and plumbing, remove the unit from the mounting assembly, and install a new Waste King disposal.
  • Step 4 – Inspect sink flange and connections: Ensure the new unit is installed with proper sealing at the sink flange and all joints to prevent future internal leaks.
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Repair Difficulty

Hard 4/5

Required Part

Garbage Disposal Unit
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