Moen garbage disposal leaks from the bottom of the unit (water dripping from motor housing)

Safety first: Unplug the disposal or turn off the breaker. Do not operate a leaking disposal; water and electricity are a shock hazard.

• Confirm leak source:
  • Dry the outside of the disposal.
  • Place a dry paper towel under the motor housing.
  • Run water in the sink (without running the disposal). If water drips from the bottom center or seams of the housing, the internal seal is compromised.
• Check external connections first:
  • Verify the sink flange, dishwasher inlet, and drain elbow are not the source (these are higher up). If they are dry but the bottom is wet, the leak is internal.
• Internal leaks are not field-repairable:
  • Moen disposals are factory-sealed; internal shaft seals and housings are not designed for user replacement.
  • Remove the disposal from the mounting assembly and replace the entire unit.
• Install replacement:
  • Follow Moen's installation instructions for the new disposal, using fresh plumber's putty at the sink flange and new gaskets.