Garbage Disposal Repair in Aliso Viejo, CA: Jams, Leaks and Replacement Choices
Here is what happens when you call about a garbage disposal. The dispatcher asks what the unit is doing: nothing at all, a hum with no spinning, a jam or a leak. Then the call goes to a plumber who serves Aliso Viejo, and that plumber can usually tell from the symptom whether the job is a reset, a repair or a replacement.
This page covers the same questions in the order a plumber asks them: what the unit does, which safe checks are worth making first, where a leak comes from, and when the answer is a new disposal and what that involves.
Garbage disposal repair: a unit that hums, jams or does nothing
A disposal has one moving part that matters, a flywheel with small impellers that pushes food against a grinding ring. When something hard lodges between them, the motor hums and the flywheel does not turn. That is a jam, and it is the most common disposal call. A unit that does nothing at all, no hum and no spin, has lost power, usually at its reset button or at the wall switch. A disposal that hums and doesn't turn has a jammed flywheel until proven otherwise.
- Turn the disposal off at the wall switch, and unplug it if it has a plug. Never put a hand in the unit, even when it is off.
- Look for the red reset button on the bottom. Press it once. A unit that tripped on overload often restarts.
- Use the hex socket on the underside, if the unit has one. A hex wrench turned back and forth frees a jammed flywheel.
- Run cold water, restore power and try again. If it hums again or the breaker trips, stop and call.
| Symptom | Usual cause | Usual next step |
|---|---|---|
| Hums, flywheel does not turn | A jam between the impellers and the grinding ring | Work it loose with the hex socket, then reset |
| Silent, no hum | Tripped reset button, no power at the outlet or a dead motor | Reset, check the switch and outlet, then call |
| Runs, but the sink drains slowly | A clog in the line below the unit | Clear the line; a cable or jet, not the disposal |
| Foul smell | Food residue on the grinding chamber and splash guard | Clean the chamber and run cold water |
Power off first, and keep hands out of the unit. A disposal that smokes, smells hot or trips a breaker repeatedly has an electrical or motor fault. Electrical wiring belongs to an electrician; the plumbing side, the mount, the drain and the water connections, is covered here.
A motor that hums and will not turn even after the flywheel is freed has usually burned out, and a replacement unit is the answer. If a disposal drains slowly or backs up into the sink with it off, the blockage is in the line below, a job for clearing a kitchen drain.
A leaking garbage disposal: three places to look
A leak under the sink comes from one of three places, and the place tells you whether the unit can be saved. Water at the top, where the disposal meets the sink drain, is the mounting seal, and it is a repair that does not need a new disposal. Water from the side, where the dishwasher hose connects, is the hose clamp or the connection. Water from the bottom or the body of the unit means the housing has cracked or a seal inside has failed, and replacement is the answer.
Dry the cabinet with a towel, wipe the unit, then run water and watch. Pinpointing the first drop saves a visit and gives the plumber what they need to arrive with the right parts. A leak that has been running for some time can swell a cabinet floor, which is a question for the page on finding the source of a leak if the wet spot does not trace to the unit.
Garbage disposal installation and replacement
Replacing a disposal is a half-hour job in the best case and several hours in a worse one. The old unit comes off its mounting ring, the new one is fitted, and the connections are made: the drain, the dishwasher hose and power. The reasons it takes longer are the ones to ask about before the work is approved.
- Power: a plug into an outlet under the sink, or a hard-wired connection. Wiring is an electrician's work if the circuit needs changes.
- Size and type: a continuous-feed unit runs while you feed it, and a batch-feed unit runs with the lid in place. A larger motor grinds more and costs more, and the existing mount determines what fits.
- Dishwasher connection: a new disposal has a plug in its dishwasher inlet that has to be knocked out, or the dishwasher will not drain.
- Drain connection: the trap and the discharge pipe, which often need new parts to fit.
- Haul-away: whether the old unit is removed.
One caller needed the water line to a dishwasher reattached along with a new disposal, a common pairing, since both share the same drain. A plumber who is installing a disposal should check that the dishwasher drain has a high loop or an air gap, so that sink water cannot flow back into the dishwasher.
Clogged, backed up or draining slowly
A disposal that is clogged is not necessarily broken. Grease and starchy food, such as rice, pasta and potato peelings, can pack the line below it, and a unit that runs freely but drains slowly points to that. Running cold water for a while before and after use helps carry waste past the trap.
Dishwasher connection and drain
The dishwasher drains through the disposal in most kitchens, which is why a clogged disposal can leave standing water in the dishwasher. A dishwasher that will not drain after a new disposal went in often has an unremoved knockout plug in the disposal inlet. The hose, the clamp and the high loop are the other things to check.
What not to put down a disposal
Grease, coffee grounds in quantity, bones, fibrous vegetables such as celery and corn husks, and anything that is not food belong in the trash. These do not damage the blades so much as they build up in the line. Chemical drain cleaners should stay out of a disposal, since they sit in the unit and can splash back.
Trouble with the faucet beside the disposal, such as a drip or a failing sprayer, is a different repair; the faucet repair at the same sink page covers it.
Garbage disposal questions
Should I repair or replace a garbage disposal?
Repair a jam, a reset problem or a leaking mount, which are quick fixes. Replace a unit with a cracked housing, a leak from the body or a motor that hums and will not turn after the flywheel is freed. A plumber can tell which it is from the symptom and the age of the unit.
Who fixes garbage disposals?
A plumber handles the mount, the drain and the water connections, and an electrician handles wiring faults. A plumber can replace a disposal that plugs into an outlet, and will say when the circuit itself needs an electrician.
Why is my garbage disposal leaking?
Water at the top is the mounting seal, from the side the dishwasher hose connection, and from the bottom or body a cracked housing or a failed internal seal. The first two are repairs, and the third usually means a new unit.
What if my garbage disposal is clogged or the sink backs up?
A disposal that runs but drains slowly has a clog in the line below it, and clearing that line fixes it. Stop running water into the sink, and do not use chemical drain cleaners in a disposal.
Disposal jammed, humming or leaking?
Call the dispatch line and describe what the unit is doing. The call is routed to a plumber serving Aliso Viejo.
Call (949) 209-5456