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Garbage disposal repair and replacement
A plumber checks whether the unit is jammed, leaking at a seal, or has failed outright, and repairs or replaces it accordingly, connected back into the existing sink drain and electrical connection.
Why is my garbage disposal humming but not spinning?
A humming sound with no spinning almost always means the motor is receiving power but the flywheel is jammed, usually by something hard that got past the blades, a bone fragment, a fruit pit, or a piece of glass. Most units have a manual reset button and an underside slot for turning the flywheel by hand to clear a jam, which resolves this without opening anything up or calling anyone at all.
If the hum continues after clearing a visible jam, or there is no sound at all, the motor itself or the internal wiring may have failed, which usually means replacement rather than repair, since disposal motors are not typically serviceable parts on their own. A plumber can confirm which situation you are actually in before anything is replaced unnecessarily, since a jam and a dead motor look identical from the outside.
Common problems
What usually goes wrong
Humming with no spinning
A jammed flywheel, often clearable without replacing the unit.
Leaking from underneath the sink
A failed seal at the sink flange or the discharge connection.
No sound or power at all
A tripped reset, a bad connection, or a motor that has failed.
Draining slowly even when running
Buildup past the disposal in the drain line itself, not the unit.
Repair or replace
When a new unit makes more sense
A jam or a loose connection is usually a repair. A leak at the seal between the disposal and the sink, or a motor that has genuinely failed, more often means replacement, since disposal units are not typically designed to be opened up and serviced piece by piece.
A replacement is connected into the same sink drain and existing electrical connection in most cases, which keeps the job to swapping the unit rather than reworking the plumbing under the sink.
Before you call
Jammed, tripped, or actually failed
A disposal that hums but does not turn is usually jammed rather than burned out, and freeing the jam from underneath with the correct wrench, rather than forcing the switch repeatedly, is what actually clears it without damaging the motor further. A unit that trips its reset button repeatedly, though, is telling you the motor itself is struggling.
Age matters here more than most kitchen fixtures. A disposal past ten years old that needs a repair is frequently close in scope to a straightforward replacement, and a plumber can say which side of that line a given unit falls on before doing any work rather than after.
Grinding bones, fibrous produce like celery, or large volumes of grease down a disposal is what leads to most of the jams and premature failures in the first place, regardless of how new the unit is.
Questions
Garbage disposals, answered
Can I fix a jammed disposal myself?
Turning off power and using the reset button, or manually turning the flywheel from underneath, is often enough for a simple jam. If it keeps happening, it is worth having it checked.
What should never go down a garbage disposal?
Grease, fibrous vegetable peels, bones and coffee grounds are common causes of jams and buildup. A plumber can go over what is safe for your specific unit.
How long do garbage disposals typically last?
Most units last somewhere in the range of 8 to 12 years with normal residential use, though heavy use can shorten that.
Will a new disposal fit my existing sink?
In most cases, yes. A plumber can confirm compatibility with your sink and drain setup before recommending a specific unit.
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Disposal jammed, leaking, or just dead?
Call and describe what it is doing. A plumber can tell you whether it needs a repair or a new unit.
No obligation to book after the call.