Miele Dry or Failing Motor Bearings

Disposal operates but makes a high-pitched squealing or screeching noise.

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 upper or lower motor bearings, Misaligned rotor shaft, Contamination in bearing area

Safety first: Turn off power at the breaker before any inspection.

Short test: Briefly run the unit with water to confirm the noise is from the disposal and not from plumbing or other appliances.
Manual spin: With power off, rotate the shaft via the bottom hex socket. Roughness or squealing indicates bearing wear.
No lubrication: Bearings in sealed disposal motors are not user-lubricable. Do not attempt to oil them.
Replacement: Continued use can lead to seizure; the motor or entire disposal should be replaced.

Hard 4/5

Motor Bearings

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