In an Auburn Hills kitchen, a garbage disposal that hums without turning, jams, leaks or will not drain is a quick fix more often than people expect, and a seized one can sometimes be freed in minutes. When a unit is genuinely worn out or cracked, a new one wired and plumbed in correctly is a clean job. Either way the sink and dishwasher that depend on it are back in service the same visit.
Here is what each disposal symptom means, and what a sound install involves.
A disposal that hums but will not turn
A disposal that hums when you flip the switch but does not spin has power but a jammed flywheel, usually something wedged against the grinding plate. The motor is fine; it just cannot turn. The fix is to cut the power, free the jam, and reset the unit. Most disposals have a hex socket on the bottom to turn the flywheel by hand and a small red reset button that pops out when the motor overheats on a jam. We clear it, confirm it spins freely, and check what caused the jam so it does not happen again the next day.
A disposal that is silent or leaking
Silence when you flip the switch is electrical: a tripped reset button, a tripped breaker, a bad switch, or a motor that has finally burned out. We work from the reset and breaker to the switch to the unit itself. A leak is different and depends on where it drips. Water from the top, at the sink flange, means the mounting gasket has failed. From the side, at the dishwasher or drain connection, it is a hose or fitting. From the bottom of the unit, the internal seals have gone, and a disposal leaking from its body is replaced, not repaired.
When it will not drain or backs up
A disposal that runs but leaves the sink full of water is a drain problem below it, not the disposal itself. The usual causes are a clog in the trap or branch line past the unit, or, very often, a blocked or kinked dishwasher drain connection, since the dishwasher drains through the disposal on most Auburn Hills kitchens. We clear the line, check the dishwasher hose and its high loop or air gap, and confirm both the sink and the dishwasher drain cleanly, because a disposal blamed for a backup is frequently just the thing sitting above the real clog.
Repairing or replacing the unit
A jam, a tripped reset, a failed switch or a leaking hose connection is a repair, and we do those rather than sell a new unit. Replacement is the call when the motor has burned out, the unit leaks from its body, or it is an old, underpowered disposal that jams on everything. A new one is matched to the sink and the household, wired to the existing switch and outlet, mounted with a fresh flange and gasket, and connected to the trap and dishwasher. We test it under running water before calling it done, so there is no drip waiting in the cabinet.
What belongs in a disposal and what does not
Most disposal failures are avoidable. The things that jam and clog them are predictable: fibrous scraps like celery and corn husks that wrap the flywheel, starchy loads like potato peels and pasta that turn to paste in the trap, grease that cools and hardens downstream, and coffee grounds and eggshells that settle into a sludge. Running cold water before, during and well after grinding carries waste down the line instead of letting it settle. A disposal is for the bits left after scraping the plate, not for disposing of a meal, and treating it that way is what keeps it out of our schedule.
Garbage disposal repair and install around Auburn Hills and nearby cities
- Plumber in Rochester Hills
Busy family kitchens in its 1990s homes jam and wear out disposals, and most tie the dishwasher through the unit.
- Plumber in Troy
Finished kitchens here make an under-sink leak worth tracing fast before the cabinet base swells.
- Plumber in Bloomfield Township
Large kitchens with heavy use burn out underpowered disposals that get replaced with a right-sized unit.
- Plumber in Birmingham
Remodeled kitchens keep the dishwasher draining through the disposal, so a backup is often the hose, not the unit.
- Plumber in Rochester
Older kitchens have aging disposals and switches where a hum or silence traces to a jam or electrical fault.
- Plumber in Royal Oak
Smaller older homes run compact disposals that jam on fibrous scraps and need freeing or replacing.
- Plumber in Madison Heights
Postwar kitchens with original wiring and switches see silent disposals that trace to the switch or breaker.
- Plumber in Clawson
Older homes with dated units jam easily, and a new disposal is matched to the sink and wired to the existing switch.
- Plumber in Oakland County
County-wide, jams, leaks at the flange, and dishwasher-drain backups are the everyday disposal calls.
Garbage disposal repair and install questions from Auburn Hills customers
My garbage disposal just hums. Can it be fixed?
Usually yes, and quickly. A hum with no spin means a jam, not a dead motor. With the power off, the flywheel is turned free with the hex socket on the bottom and the red reset button is pressed. Once it spins freely it runs again. We also check what caused the jam so it does not seize again the next time you use it.
Why is my disposal leaking?
It depends where. A leak from the top at the sink flange is a failed mounting gasket. From the side, it is the dishwasher or drain connection. From the bottom of the unit, the internal seals have gone, and a disposal leaking from its body is replaced rather than repaired. We trace the drip to its source before deciding between a repair and a new unit.
The disposal runs but the sink will not drain. Why?
That is a drain clog below the disposal, not the disposal itself. It is often the trap or branch line, or a blocked dishwasher drain hose, since the dishwasher drains through the disposal on most kitchens here. We clear the line and check the dishwasher connection, since the disposal is usually just sitting above the real blockage.
Should I repair or replace my garbage disposal?
Repair a jam, a tripped reset, a bad switch or a leaking hose. Replace when the motor has burned out, the unit leaks from its body, or it is an old, underpowered disposal that jams constantly. A new one sized to your sink and household, properly mounted and connected to the dishwasher, is a clean same-visit job once replacement is the right call.
Still not sure what you're dealing with? Describe it on the phone and we'll tell you what we'd check first.
(207) 419-2600Last updated October 28, 2026