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Mariano Plumbing & Drains

Garbage Disposal Repair

Is the disposal fixable, or is it time to replace it?

Disposals fail in a handful of predictable ways: a jam, a hum with no spin, no power at all, or a leak underneath. Some are a quick fix; others mean the unit has reached the end. The symptom usually tells you which.

By symptom

Match the symptom to the likely fix

A jam is often a foreign object or buildup that can be cleared. A hum with no spin usually points to a stuck motor or a failed capacitor. No power at all may be the disposal's internal breaker or the outlet underneath the sink.

A leak, though, can mean a failed seal, or a cracked housing that calls for a new unit.

Residential kitchen sink with a garbage disposal unit visible underneath

Common symptoms

Jam / won't spin

Often a foreign object or buildup. Many can be cleared safely, after the power is off.

Often repairable

Hums but doesn't turn

A stuck impeller or a failed capacitor inside the unit.

Sometimes repairable

No power

The disposal's reset button, the outlet, or the unit's wiring.

Worth diagnosing

Leaking underneath

A failed seal at a connection, or a cracked housing. Seals can be replaced; cracks usually can't.

Depends on source

Drains slowly

May be the disposal's grinding chamber, or a clog further down the line.

Worth diagnosing

Frequent resets

A unit that keeps tripping its reset is often overheating or near end of life.

Often means replace

Safety note: never reach into a disposal without confirming the power is off at the switch and the circuit. Clearing a jam or replacing a unit is not a safe DIY project without that step.

Repair or replace?

Usually worth repairing

  • A clearable jam on an otherwise sound unit
  • A failed connection seal that can be replaced
  • A first-time reset issue with a simple cause

Often means replacing

  • A cracked housing causing the leak
  • A motor or capacitor failure on an older unit
  • Repeated resets or chronic jams from a worn unit

Tell us what the disposal's doing

Describe the symptom, whether jam, hum, leak, or no power, and the unit's rough age. That usually determines whether it's a fix or a replacement.

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