American Standard Bearing or Bushing Wear

Disposal makes a high-pitched squeal or screech when starting or stopping.

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.

Possible Causes

Worn motor bearings, Misaligned rotor, Debris rubbing between rotor and housing, Lack of lubrication in sealed bearing

Safety first: Turn OFF power before inspecting.

Check for debris: Inspect the grinding chamber and remove any foreign objects that could rub during startup.
Short test: Restore power and run the American Standard disposal briefly with water. If the squeal is clearly from the motor area and not from debris, the bearings are likely worn.
No lubrication ports: These motors are sealed and cannot be lubricated.
Replace disposal: Persistent squealing from bearings indicates the unit is nearing failure and should be replaced.

Medium 3/5

Garbage Disposal Motor Assembly

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