E6
Astracast Internal Seal or Grinding Chamber Leak

Water leaks from the very bottom of the Astracast disposal housing, often dripping from the motor area or reset button.

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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 upper shaft seal between grinding chamber and motor, Corroded Astracast grinding chamber wall, Cracked internal housing from impact, Loose or damaged internal mounting screws

How to Fix / Troubleshooting

Safety First: Immediately switch OFF power at the breaker. Water leaking into the motor area is an electric shock and fire hazard.

  • Step 1 – Confirm leak origin: Dry the exterior of the unit. Run water without operating the disposal and observe. If water emerges from the bottom or reset button area, the leak is internal.
  • Step 2 – Check sink flange first: Ensure the leak is not coming from above and running down the sides. Wipe around the sink flange and mounting ring to confirm.
  • Step 3 – Do not open motor housing: Astracast disposals are generally not designed for internal seal replacement by end users. Opening the motor housing can compromise safety certifications.
  • Step 4 – Plan replacement: If the internal shaft seal or grinding chamber is leaking, the safe and recommended repair is to replace the entire Astracast disposal unit.
  • Step 5 – Dry area and inspect wiring: After removal, inspect the under-sink area and electrical junction box for water damage. Replace any corroded connectors.

Warning: Do not continue using a disposal that leaks from the bottom; it can cause electric shock and cabinet damage.

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Repair Difficulty

Professional Required 5/5

Required Part

Astracast complete disposal unit
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