A garbage disposal that hums but will not spin has a jammed flywheel. A disposal that makes no sound at all when you flip the switch has either a tripped overload, a dead wall switch, or a burned-out motor. A disposal leaking from the bottom has a failed internal seal between the motor housing and the grind chamber, and that seal is not a part you can buy separately on most residential units. Each of those is a different repair with a different answer on whether replacement makes more sense.
Phoenix hard water, 12 to 20 grains per gallon depending on the utility, accelerates the wear inside disposals the same way it does inside water heaters and faucet cartridges. Calcium scale builds up on the grind ring and impellers, and the added friction puts more load on the motor bearings. Units that last 10 to 12 years in softer-water cities tend to start failing here around year 7 or 8. If yours is in that range and jamming often or leaking from the base, replacement is usually the more honest call.
We carry common half-horsepower and three-quarter-horsepower units on our trucks, so most repairs and replacements finish the same visit. If a jam clear and a reset get yours running again, that is what we do. Call 602-560-8989 for a free estimate and a straight answer on repair versus replacement.
What We Handle
Our Process
Diagnose
We check the breaker, the wall switch, and the overload reset button on the bottom of the unit first, because those three account for most "dead" disposals that actually have working motors. If the unit hums, we cut power and turn the flywheel manually with a quarter-inch hex wrench through the bottom port to find what is jamming it. If the motor runs free but the unit still will not grind, or if there is water coming from the base, we tell you exactly what failed and whether the unit is repairable.
Repair or Replace
A jammed flywheel, a tripped reset, or a worn splash guard are repairs worth doing. A burned-out motor or a leaking bottom seal on a unit past year 7 is not, because the internal seals are molded into the motor housing and most manufacturers do not sell them as separate parts. We give you the honest math on both options and let you decide.
Install and Test
For replacements and new installs, we mount the unit to the sink flange with fresh plumber's putty, connect the discharge tube and dishwasher drain inlet if you have one, wire the switch, and run a full test cycle with water. We show you where the reset button is and how to clear a future jam with the hex wrench so you are not calling us for something you can handle yourself.
Frequently Asked Questions
The motor has power but the flywheel is locked. Something fell into the grind chamber and wedged between the impellers and the grind ring. Bone fragments, fruit pits, and dropped utensils are the usual culprits. Turn the unit off immediately; a stalled motor pulls maximum current and converts all of it to heat, which cooks the winding insulation and burns the motor out. If you have a quarter-inch Allen wrench, insert it into the hex socket on the bottom of the unit and turn the flywheel back and forth until it spins free, then press the red reset button and test. If the wrench turns freely but the unit still hums, the motor bearings may be seized and replacement is likely the next step.
Water from the bottom of the housing almost always means the internal seal between the motor shaft and the grind chamber has failed. On most residential disposals that seal is molded into the motor housing and is not sold as a separate replacement part. Once water reaches the motor windings, the unit is on borrowed time. If the disposal is past 7 or 8 years old, replacement is the right call. Leaks from the top, around the sink flange, or from the side at the dishwasher inlet are usually a gasket or mounting issue and are straightforward to fix.
Half-horsepower handles everyday food waste in a one- to three-person household. Three-quarter-horsepower gives more grinding force and handles fibrous scraps like celery and fruit rinds better, which makes it the better choice if you cook often or have a larger family. One-horsepower models exist for heavy use, but most Phoenix kitchens do well with a three-quarter. We size the recommendation to how you actually use the sink, not to whatever the builder originally installed.
In most cases, yes. The sink needs a standard 3.5-inch drain opening, which is what the mounting assembly clamps to, and there needs to be an electrical outlet or a switched junction box in the cabinet below. Some older homes have a smaller drain opening or no outlet under the sink, and both of those are things we can address. We assess the setup first and give you a complete quote before any work starts.
National averages run 8 to 12 years, but Phoenix hard water pulls that range lower. Scale buildup on the grind ring and impellers adds friction that wears motor bearings faster, and corrosion thins the grind chamber wall. We see units start giving trouble around year 7 to 9, especially on EPCOR water at 16 to 20 grains per gallon. Signs that yours is getting close: frequent jams, persistent odor after cleaning, needing to reset it often, or a leak from the base.
Not necessarily. Check the red reset button on the bottom of the unit first; it is a thermal overload protector that trips when the motor overheats, and pressing it back in restores power. If the reset is not popped, check whether the wall switch has power and whether the breaker tripped. A disposal that gets no power from any of those three sources has an electrical issue upstream of the motor. A disposal that gets power but makes no sound at all, not even a hum, usually does have a dead motor, and replacement is the practical option at that point.