How to Reset Garbage Disposal Units in San Antonio

By the San Antonio 24 Hour Plumber team · Updated October 2026

What to do first

1. Turn the disposal wall switch to off and leave it off while you work.
2. Unplug the disposal under the sink, or switch off its breaker if it is hardwired.
3. Wait a few minutes so an overheated motor can cool down.
4. Shine a flashlight into the drain and remove any objects with tongs or pliers, never your hand.
5. Press the reset button on the bottom of the unit, restore power and test it with cold water running.

How do I reset a garbage disposal step by step?

To reset a garbage disposal in a San Antonio kitchen, turn off the switch, cut the power, let the motor cool, clear any jam, then press the reset button on the bottom of the unit until it clicks and stays in. Restore power, run cold water and flip the switch on.

1. Power off: wall switch off, then unplug the unit or switch off its breaker.
2. Cool down: give an overheated motor a few minutes.
3. Look inside: use a flashlight and remove objects with tongs.
4. Press reset: the button is usually red and sits on the underside of the unit.
5. Test: power back on, cold water running, then switch on.

If the reset button pops out again right away, something is still binding the motor or a part has failed.

Where is the reset button on a garbage disposal?

The reset button is almost always on the bottom of the disposal, under the sink, near the center or close to where the power cord enters. It is a small red or black button. When it has tripped, it sticks out slightly; a working reset clicks in and stays flush.

Under-sink cabinets are dark and cramped, so use a flashlight. Some units also have a small hex socket in the center of the bottom, which is used to free a jam. If you cannot find either, look for the brand and model on the label and check the owner's manual.

Why does my garbage disposal hum but not spin?

A disposal that hums but does not spin usually has a jam. Power is reaching the motor, but something is stopping the grinding plate from turning, such as a fruit pit, bone, utensil or bottle cap. Running it while it hums can overheat the motor and trip the reset button.

Turn it off right away. With the power cut, look inside with a flashlight and remove what you can see using tongs. If nothing is visible, the jam may be under the plate, and the hex key method in the next section usually frees it. A constant hum with no jam at all can point to a worn motor.

How do I unjam a disposal with the hex key?

Most disposals come with a small L-shaped hex key, often called an Allen wrench, that fits the socket in the center of the bottom of the unit. With the power off, insert the key and work it back and forth until it turns a full circle freely. That frees the grinding plate.

Then remove any loosened debris from the top with tongs, press the reset button and test the unit with cold water running. If you lost the key, a hardware store hex key of the right size works. If the key will not turn at all, stop forcing it and call for help, because the plate or motor may be damaged.

What if the disposal does nothing at all?

If the disposal makes no sound when you flip the switch, it is usually not getting power. Check three things in order: the reset button on the bottom, the plug under the sink, and the breaker or GFCI outlet that feeds it. A tripped reset button is the most common cause.

If the reset, plug and breaker all check out and there is still no sound, the wall switch or the motor may have failed. Electrical work under a wet sink carries real risk, so this is a good point to have a professional look at it. Do not open the electrical cover on the unit yourself.

Is it safe to reset a garbage disposal myself?

Pressing the reset button and freeing a jam with the hex key are generally safe tasks for a homeowner when the power is fully off. The real dangers are reaching into the chamber, working on a unit that is still plugged in, and mixing water with exposed wiring.

• Never put your hand inside the disposal, even when it is off.
• Do not pour chemical drain cleaners into a disposal; they can splash back and harm the seals.
• Do not keep pressing reset if it trips again and again. Repeated trips mean the motor is overheating for a reason.
• Stop if you see water dripping from the bottom of the unit.

When should I call a plumber instead of resetting it again?

Call a plumber when the reset will not hold, the breaker keeps tripping, the hex key will not turn, the unit leaks, or the sink backs up even when the disposal runs. These signs point to a failed motor, a cracked housing, a worn seal or a clog further down the drain line.

A clog past the disposal is a drain problem, not a disposal problem. The drain cleaning page explains what a plumber does for kitchen lines, and Clogged Drain or Sewer Line? helps you tell the two apart. For repair or replacement of the unit, see garbage disposal repair.

What happens during the visit?

During the visit, the plumber checks the disposal, its power, the seals and the drain connections, explains what failed, and gives you a written quote before any work begins. You decide whether to repair, replace or wait. Timing depends on the provider's schedule and the parts needed.

• Inspection: the grinding chamber, motor, mounting ring, dishwasher hose and drain trap.
• Options: what repair would involve and, if it applies, what a new unit would involve.
• Written quote: the scope of work in writing before anything starts.

What should San Antonio homeowners know about disposals?

Garbage disposals in San Antonio share the same plumbing stresses as the rest of the kitchen. San Antonio Water System (SAWS) says the typical hardness of its water ranges from 15 to 20 grains per gallon, from minerals that occur naturally in the Edwards and Trinity aquifers, and it notes that hard water is not a health hazard. Mineral buildup is a common topic in local kitchens, so running plenty of cold water during and after each use is good practice. Homes in Boerne, New Braunfels or Schertz may be on a different utility and can check their own water report.

Freezes are less common but matter for under-sink pipes on outside walls. NWS normals show San Antonio averages 14 days a year with lows at or below 32°F, and the February 2021 winter storm listed burst water pipes among its impacts. If a disposal or the pipes under it start leaking, SAWS advises shutting off the main water service at the meter if you suspect a leak, and it notes it cannot repair plumbing on private property.

Texas law lets a property owner do plumbing on their own homestead without a plumbing license, though a city may still require a permit. For bigger jobs, TSBPE suggests asking for the company's Responsible Master Plumber and checking the license. This site connects callers across the area, including Stone Oak, Alamo Heights, Leon Valley, Converse and San Antonio.

Related pages

• Garbage Disposal Repair in San Antonio
• Drain Cleaning
• Clogged Drain or Sewer Line?
• Emergency Plumber in Stone Oak