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ErrBase

InSinkErator Garbage Disposal Leaking From Bottom, Side, or Top

Quick Answer

InSinkErator garbage disposal leaking is diagnosed by WHERE the water drips. LEAKING FROM TOP (flange connection to sink): the mounting ring or plumber's putty seal has failed. Remove the disposal, clean old putty, apply new plumber's putty to the flange, and remount. LEAKING FROM SIDE (dishwasher connection): the hose clamp on the dishwasher inlet is loose. Tighten with a screwdriver.

InSinkErator garbage disposal leaking is diagnosed by WHERE the water drips. LEAKING FROM TOP (flange connection to sink): the mounting ring or plumber's putty seal has failed. Remove the disposal, clean old putty, apply new plumber's putty to the flange, and remount. LEAKING FROM SIDE (dishwasher connection): the hose clamp on the dishwasher inlet is loose. Tighten with a screwdriver. Also check the rubber gasket inside the dishwasher inlet. LEAKING FROM BOTTOM: this is bad - the internal seal on the motor shaft has failed. The disposal unit must be replaced. Bottom leaks are not repairable. InSinkErator models over 8-10 years old commonly develop bottom leaks from seal degradation. InSinkErator offers a 2-7 year warranty depending on the model tier (Badger = 2 years, Evolution = 7 years).

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

What Does the LEAKING Code Mean?

InSinkErator leaking: FROM TOP = flange seal failed, reapply plumber's putty.

Most Likely Causes

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

Door seal or gasket torn or displaced40%
Overfill from stuck-open inlet valve24%
Drain hose connection loose at pump or drain14%
Tub seal leaking at drum shaft12%
Pump housing cracked10%

Symptoms You May Notice

  • InSinkErator Garbage Disposal Leaking From Bottom, Side, or Top issue
  • Performance degradation
  • May display error code

Can you reset a Insinkerator garbagedisposal to clear the LEAKING 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