Warning: Disconnect power before servicing.
ErrBase

InSinkErator Garbage Disposal Not Working: Humming, Jammed, and Reset Fixes

Quick Answer

InSinkErator garbage disposals that won't work fall into three scenarios: HUMMING but not grinding = the flywheel is jammed by a foreign object (bone, utensil, glass). Turn off power, insert the hex wrench (included with every InSinkErator) into the hole on the bottom center of the unit, and turn back and forth to free the jam. Then press the red RESET button on the bottom.

InSinkErator garbage disposals that won't work fall into three scenarios: HUMMING but not grinding = the flywheel is jammed by a foreign object (bone, utensil, glass). Turn off power, insert the hex wrench (included with every InSinkErator) into the hole on the bottom center of the unit, and turn back and forth to free the jam. Then press the red RESET button on the bottom. SILENT (no sound at all) = the overload protector has tripped or the unit has no power. Press the red RESET button on the bottom of the unit. If still silent, check the circuit breaker and the wall switch. NO RESET BUTTON RESPONSE = the motor has burned out or the wiring to the switch has failed. InSinkErator motors are not repairable - the unit must be replaced ($80-200 for the unit, $150-300 installed).

InsinkeratorGarbagedisposalSeverity: mediumDifficulty: intermediate75% DIY Success
Time to Fix
15–90 min
Difficulty
intermediate
Parts Cost
—
Tools Needed
Multimeter, Screwdriver

What Does the NOT-WORKING Code Mean?

InSinkErator not working: HUMMING = jammed, use hex wrench on bottom to free, then press red RESET button.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Component failure in the Insinkerator garbagedisposal40%
Sensor or thermostat out of operating range24%
Control board fault14%
Power or electrical supply issue12%
Mechanical wear requiring inspection10%

Symptoms You May Notice

  • InSinkErator Garbage Disposal Not Working issue
  • Performance degradation
  • May display error code

Can you reset a Insinkerator garbagedisposal to clear the NOT-WORKING code?

Unplug 60 seconds. Plug in and test.

Tools Required for Diagnosis

MultimeterScrewdriverFlashlight

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

1

Check the primary cause described in the detailed guide above.

Check the primary cause described in the detailed guide above.

2

Check for error codes and secondary causes.

3

Run manufacturer diagnostic mode or call professional.

Frequently Asked Questions

How much does Insinkerator garbagedisposal repair cost?
Most repairs $100-400 depending on component. Simple fixes free.
Repair or replace?
Under 8 years and repair under 50% replacement cost = repair.
DIY?
Many fixes DIY. Gas/sealed systems need professionals.

Last verified for technical accuracy on March 15, 2026