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Test Operation — Inspect for a Seized Garbage Disposal Motor

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Garbage Disposal Repair: Troubleshooting a Non-Working Disposal · Step 3 of 3

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In this video

After using the Allen wrench to free the motor, remove the tool from the bottom of the unit. Turn the disposal on using the wall switch. The motor should now spin, but listen for any loud rattling or clanking sounds. Such noises indicate that the foreign object is now loose inside the grinding chamber and still needs to be removed.

Goal: Confirm the motor is free and identify loose objects

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steven lavimoniere

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FAQs

What is the absolute first thing I should do before attempting any garbage disposal repair?

Always cut power to the disposal at your home's circuit breaker first. This crucial step prevents accidental activation of the unit and eliminates the risk of electric shock while you are working near the blades and electrical components. Confirm the power is off by trying to turn on the disposal switch.

Do I need specialized tools like the NITECORE flashlight or the ACDelco torque wrench for this project?

While a bright flashlight (like the NITECORE) is extremely helpful for visibility inside the disposal, any reliable flashlight will suffice. The most critical tools are strong pliers or tongs for removing obstructions, and an Allen wrench (often provided with the disposal) for resetting the motor and rotating the impeller. The adjustable wrench and torque wrench listed are not typically required for these specific troubleshooting steps.

I pressed the red reset button, but my disposal still isn't working. What should I try next?

If the reset button doesn't immediately solve the problem, first double-check your home's circuit breaker to ensure power is indeed reaching the unit. Next, locate the hexagonal reset hole on the bottom of the disposal, insert the appropriate Allen wrench, and manually rotate it back and forth several times to free any internal jams. Then, try pressing the reset button again.

My garbage disposal hums when I turn it on but doesn't spin. What does this mean?

A humming sound typically indicates that the motor is receiving power, but the grinding impellers are seized, most often by a lodged object. Immediately turn off the power at the circuit breaker. Then, use the Allen wrench in the bottom reset hole to manually rotate the motor shaft until the impellers move freely, before restoring power.

Test Operation — Garbage Disposal Repair: Troubleshooting a Non-Working Disposal (Step 3, Video 1) | Stesso