Garbage disposal repair in Knoxville, TN usually means freeing a jam with the hex key in the base of the unit, resetting its overload button, resealing a leak at the sink flange or dishwasher inlet, or replacing a unit whose body has cracked. A leak from the disposal body itself cannot be repaired.
Updated October 2026
Jam, Leak or Worn Out
A disposal that hums is jammed; one that's silent has tripped its reset or lost power; one that grinds but drains slowly is fine, and the clog is downstream. Leaks come from the sink flange at the top, the dishwasher or discharge connections at the side, or the body at the bottom. Only the last means the unit is finished.
InSinkErator and Moen units make up most of what we repair, and both have a hex socket in the base for freeing jams. When replacement is the answer, see disposal installation.
Signs Your Disposal Needs Attention
How a Disposal Repair Runs
- 1
Power off
Breaker or switch off, unit made safe.
- 2
Diagnose
Jam, reset, leak point or drain checked.
- 3
Free or reseal
Jam cleared, seals reset or replaced.
- 4
Test
Run with water, checked for leaks.
- 5
Advise
Repair or replace explained honestly.
Jammed Disposal
Most jams are a hard object, a fruit pit, a bone, a bottle cap or a spoon, wedged between the grinding plate and the ring. With the power off, a hex key in the socket at the bottom of the unit turns the plate back and forth to free it, and the object is then pulled out with tongs, never fingers. Afterward the red reset button on the bottom is pressed. If the plate will not move with the key, or the jam keeps returning, the bearings or plate are worn and the unit is near the end.
Humming but Not Turning
A disposal that hums but does not spin is getting power, and the motor is straining against a jam. Leaving it switched on overheats the motor and trips its thermal protection. Switch it off, free the jam from below, wait a few minutes for the motor to cool, press the reset button, and try again with the water running. A unit that still hums while the plate turns freely by hand has a failing motor or capacitor, and at that point replacement usually costs less than repair.
Leak From the Disposal Body
Where a disposal leaks decides the fix. Water at the top, where it meets the sink, is the flange's putty seal or mounting ring, and it can be reset; a new flange can even match a Moen, Delta or Kohler faucet finish. Water at the side is the dishwasher hose clamp or the discharge tube gasket, both cheap to replace. Water dripping from the bottom of the body means the grinding chamber has corroded through, and the unit has to be replaced rather than repaired.
When the Disposal Is Fine and the Drain Is Not
Disposal Fixes You Can Try Safely
Most jams clear with a hex key. Power off first, and never put a hand inside.
| Job | Reasonable DIY? | Why |
|---|---|---|
| Freeing a jam with the hex key | Yes | Power off, turn the socket in the base back and forth |
| Pressing the reset button | Yes | After the motor cools for a few minutes |
| Tightening a leaking hose clamp | Yes | On the dishwasher inlet |
| Fixing a leak from the body | No | The unit has to be replaced |
What Disposal Repair Costs Depends On
Most repairs are quick; a cracked body means a new unit.
Freeing a jam is the simplest call.
Resetting the flange or replacing a gasket.
Clearing the line past the disposal.
A new unit when the body or motor has failed.
Night and weekend calls cost more.
Garbage Disposal Repair Questions From Knoxville Homeowners
Why does my disposal hum but not turn?
A jam. Switch it off, turn the hex socket in the base to free it, then press reset.
Where is the reset button?
A small red button on the bottom of the unit.
Can a leaking disposal be fixed?
Leaks at the flange or side connections can; a leak from the body means replacement.
Why does my disposal smell?
Food stuck in the chamber and splash guard. Run it with cold water and ice, then clean the rubber guard.
Can drain cleaner go into a disposal?
No. Chemicals damage the unit and make repairs hazardous.
Is an old disposal worth repairing?
If the motor and body are sound, yes; if not, a new unit costs less over time.
Other Kitchen & Bath Jobs We Handle
Faucet Installation
Kitchen pull-down faucet and bathroom widespread faucet set.
Faucet Installation in KnoxvilleBathtub & Shower Installation
Tub to shower conversion and walk-in shower base.
Bathtub & Shower Installation in KnoxvilleDisposal jammed or leaking?
Call any hour. We free it, fix it, or tell you straight if it is done.