Jammed, leaking or dead: what the disposal is telling you
Humming but not spinning
The motor is trying to turn against a jam, often a bone, a fruit pit or a utensil. Cutting the power and freeing the flywheel with a hex wrench from underneath usually fixes it.
Silent and dead
No hum, no spin. The red reset button on the bottom of the unit may have tripped, or the outlet or switch may have lost power.
Water under the sink
Leaks come from the sink flange seal, the dishwasher hose connection, the drain elbow or a cracked housing. Where the water shows up decides whether it is a repair or a replacement.
Slow draining sink
A disposal that grinds but the basin drains slowly means the blockage is past the unit, in the trap or the branch drain.
Foul smell
Grease and food film build up under the splash guard and inside the chamber. A thorough cleaning often cures it, but a persistent smell can point to a drain issue.
Safety before anything else
What to do while you wait
Cut the power
Switch off the wall switch and, if you can, the breaker for that circuit. A disposal is an electrical appliance sitting in a wet cabinet.
Keep hands out
Never reach into the chamber, even with the switch off. Use tongs or pliers, and only after the power is off.
Stop the water
Close the two shutoff valves under the sink or the main if the leak is heavy. Move cleaners out of the cabinet and put a pan under the drip.
Call the line
Describe the sound, the smell and where the water appears. Dispatch is open nights and weekends and books same-day visits when a crew is free.
Repair, replace or leave it alone
| Situation | Repair? | Replace? | Notes |
|---|---|---|---|
| Humming jam, no leak | Yes | No | Free the flywheel, press reset, test with water |
| Leak at the sink flange or dishwasher hose | Often | Sometimes | New putty or gasket, new hose clamp |
| Leak from the housing seam or bottom | No | Yes | A cracked housing cannot be sealed for long |
| Motor dead after reset and power check | Rarely | Usually | Replacement often makes more sense than repair |
| Unit is over a decade old and failing again | Short-term only | Yes | Frequent jams signal worn parts |
| Slow sink, disposal runs normally | Not the unit | No | See drain cleaning for the trap and branch line |
Replacing a disposal reuses the sink flange when it is sound, so the job is usually one visit. The new unit's horsepower and mount type should match the old one unless you are changing it on purpose.
Disposal jammed or leaking right now?
Describe the hum, the leak or the silence. The price is settled before the plumber starts work.
Installing a new disposal
Check the setup
A plumber looks at the sink flange, the dishwasher inlet, the trap and the existing outlet or hardwire to see what can be reused.
Remove the old unit
Power is off and tested, the drain and dishwasher hose are disconnected and the mount ring is released.
Mount and connect
The new unit is locked onto the flange. The dishwasher knockout plug is removed if a dishwasher connects, and the drain elbow and trap are reattached.
Test under load
Water runs for several minutes while the plumber watches every joint for seepage. A licensed electrician should handle any wiring changes.
Permit rules vary, so ask the Farmington building department if your install needs one. The town handles inspections for plumbing and electric, and you can verify a plumber's license on the state's eLicense lookup.
A sink that backs up even with the disposal running
A disposal grinds food into small pieces, but it does not carry grease, coffee grounds or fibrous peels away through the drain line. Those stick to pipe walls and narrow the line from the trap onward. When a basin drains slowly with the disposal on, the clog is usually past the unit, which is a drain cleaning job.
If the whole house drains slowly and the kitchen sink is only one symptom, the main line may be the issue. A sewer line cleaning call with a cable or camera finds that out.
Renting in Farmington
About a quarter of Farmington households rent, according to the Census Bureau's 2020 to 2024 estimates. If you rent, check your lease and tell your landlord before you hire a plumber, since the unit and the drain may be the owner's responsibility.
What shapes a disposal quote
A disposal job can be a ten-minute jam clearing or a full swap with new plumbing. The price follows the work.
Call (860) 397-8103 for your number. You hear a clear price before work begins.