Why is my garbage disposal humming but not working?
A humming disposal that won't spin has something jammed in the flywheel — usually a bone, bottle cap, or utensil. The hum is the stalled motor trying to turn. Cut power, clear the jam, use the hex-wrench port on the bottom to free the plate, and it usually lives. A disposal that leaks from the bottom or keeps tripping its reset is done: replacement, not repair.
Likely causes
- Jammed flywheel — Hard debris locks the plate; the hum is the stalled motor.
- Tripped reset or breaker — The disposal's own overload switch pops to protect the motor — that version is silent, no hum.
- Worn seals (leaking from the bottom) — Bottom leaks mean the internal seal failed — disposals aren't rebuilt; replace.
- Dead motor — No sound at all with power confirmed — the unit has failed.
What you can check yourself
- Power OFF at the switch and breaker. Never reach inside with your hand — use tongs or pliers to fish debris out through the drain opening.
- Insert an Allen wrench (usually 1/4 inch) in the hex socket on the unit's bottom and work it back and forth to free the jam.
- Press the red reset button on the bottom, restore power, run cold water, and test.
Typical cost
A plumber's repair visit in Miami, FL typically runs $150–$300 if it's just a jam or reset. Disposal replacement runs $250–$600 installed depending on horsepower and brand.
When to call a pro
Leaks from the bottom of the unit, repeated breaker trips, or a jam you can't free — call. Water plus a failing electrical appliance under the sink is not a wait-and-see.
Plumber pros in Miami, FL
- Plumber's Enterprise · 2900 NW 33rd Ave, Miami, FL · 13056339994
- People's Plumbing & Mechanical Inc · 4290 NW 37th Ct, Miami, FL · 13058857473
- E & M Plumbing · 3595 NW 49th St, Miami, FL · (305) 634-2733
- Champ Plumbing Corp · 3555 NW 52nd St, Miami, FL · +13056387777
- USA Plumbing & Septic, Inc. - Plumber Miami · 2745 NW 24th Street, Miami, FL · 3058561696
- Quick Fix Plumbing · 3201 NW 24th Street Rd, Miami, FL · +13053596882
- Miami 24/7 Plumbing · 1331 SW 32nd Ave Apt 4, Miami, FL · (786) 857-3695
- J's Stoppages Doctor · 2485 NW 85th St, Miami, FL · +17865234169
Get free quotes from Miami, FL pros →
Data by Servik — verified local pros from official license records and public sources. Cost figures are typical ranges, not quotes; a pro's written estimate is the real number.