When a Dunwoody disposal hums, does nothing or leaks under the sink, the cause is usually a jam, a tripped overload, a failed gasket or a worn motor. Try a few safe checks first, then call if it won't recover. Call the number on this page to be connected with a local plumber in Dunwoody.
Dunwoody homes and rules
Dunwoody combines the Perimeter Center business district with established neighborhoods around historic Dunwoody Village. About 44% of its homes were built before 1980, and the 1970s alone account for roughly 28%, according to Census survey figures. In those houses, the kitchen drain behind a newer disposal may have narrowed with decades of buildup. DeKalb County Watershed Management provides water and sewer; the city has no sewer system of its own. Dunwoody's single-trade component permits cover stand-alone plumbing repairs, and work may not begin until the permit is issued, so ask your plumber whether a disposal job falls under that rule (678-382-6821).
First steps at the sink
- Switch it off and unplug it. If it's hardwired, shut the breaker that feeds it.
- Look, don't grab. A flashlight shows what's in the chamber; tongs remove it safely.
- Free the plate from below. The wrench that came with the unit fits the center socket underneath; rock it back and forth.
- Press reset. Push the red button underneath, restore power and start it with cold water running.
- Pause the dishwasher. If it drains through the disposal, its water has nowhere to go.
- Hold off on starting work yourself. Dunwoody says permitted work may not begin until the permit is issued.
- Skip the chemicals. Drain openers rarely clear a disposal clog and can damage its seals.
- Call if it won't recover. A unit that stays silent, keeps humming or leaks from the bottom needs a plumber.
Symptoms and likely causes
| Symptom | Likely cause |
|---|---|
| Other fixtures gurgle too | Main drain or sewer lateral, not the disposal |
| Water from the bottom | Internal seal failure; the unit usually needs replacing |
| Buzzing with the plate locked | A bone, pit or utensil jammed in the chamber |
| Dead switch, no hum | Overload tripped, loose plug or worn-out motor |
| Drip at the side | Worn dishwasher hose, clamp or discharge tube gasket |
| Sink stays slow after the fix | Buildup in an older drain line behind the wall |
What affects the cost
- Repair or replacement, the biggest single factor.
- Disposal grade: entry, mid-size or heavy-duty motor.
- Condition of the trap and tailpiece, especially in older kitchens.
- Electrical hookup, cord-and-plug or hardwired.
- Any permit the job requires, and its inspection.
Garbage Disposals questions in Dunwoody
Who handles the permit if a disposal job needs one here?
Will an older kitchen drain cause trouble for a new disposal?
Who do I call if the backup is in the sewer and not the disposal?
How can I get rid of a disposal smell without harsh chemicals?
More plumbing services in Dunwoody
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