Tweeny
Internal Shaft Seal Failure
Garbage disposal leaks from the bottom only when running
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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
Worn lower shaft seal, Corroded motor shaft, Internal housing corrosion from prolonged leakage
How to Fix / Troubleshooting
Safety First: Disconnect power immediately and avoid using the disposal to prevent electrical hazards.
- Step 1 – Confirm leak condition: Run water with the disposal OFF; if no leak occurs until the motor runs, the internal shaft seal is likely failed.
- Step 2 – Inspect exterior: Check for rust streaks or water marks around the bottom of the Tweeny unit.
- Step 3 – Do not attempt seal replacement: On most Tweeny models, the shaft seal is not user-serviceable and requires factory-level repair.
The recommended solution is to replace the entire disposal unit, as internal seal failure often coincides with motor wear.
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Repair Difficulty
Professional Required
5/5
Required Part
Tweeny lower shaft seal
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