E13
AmazonCommercial Locked Rotor with Overload Trip

Disposal makes a loud humming noise and then the reset button trips almost immediately when switched on.

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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

Severe jam in grinding chamber, Foreign object wedged at motor shaft, Bent grind plate, Failed start winding in motor

How to Fix / Troubleshooting

Safety First: Turn OFF power and do not repeatedly reset the overload while the rotor is locked; this can damage the motor.

  • Step 1 – Manually free the rotor: Insert a 1/4" Allen wrench into the bottom hex socket and work it back and forth firmly to break free any jam. You should feel the plate begin to rotate.
  • Step 2 – Remove debris: From above, use tongs to remove any large bones, utensils, or other objects.
  • Step 3 – Reset overload: Once the rotor turns freely by hand, press the reset button until it clicks.
  • Step 4 – Test with water: Run cold water and switch the unit ON. If it still hums and trips, the motor start winding or capacitor (if equipped) may have failed.
  • Next step: For AmazonCommercial disposals, motor electrical components are not typically user-serviceable; replace the unit if the rotor is free but the motor cannot start under load.
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Repair Difficulty

Medium 3/5

Required Part

Complete Garbage Disposal Unit
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