A garbage disposal sits under the sink, and the work on it falls into two groups. Some tasks belong to the homeowner. Others belong to a licensed trade. The line between them is where you stop, so decide where it is before anything comes out of the drawer.
Tasks that stay with you
- Run cold water while the unit is on, and keep it running for a short time after the grinding stops.
- Clear visible debris from the opening only with the power off at the switch or the breaker. Keep your hand away from the grinding chamber while the unit could still start.
- When the unit stops and hums, switch it off, then press the reset button on the underside.
- With the power off, use the hex socket on the bottom of the unit to turn the motor by hand and free a jam.
- Write each jam, reset, and change in noise into a short log kept beside the unit.
Where you stop and call a pro
Stop if the unit hums and does not turn after a reset and a clearing. Stop if you smell burning, or if you see water at the mounting ring or the drain connection. Stop before any work on the wiring, the switch, or the outlet. Stop before you change the drain pipe or the dishwasher connection. Those are the parts where the local code and a permit question matter, and a quick fix can hide a wiring problem.
Questions to ask the person who comes out
- What will you check before you recommend replacing the unit?
- Is the switch and its circuit in sound condition?
- Does this job need a permit where I live?
- What happens to the drain connection and the dishwasher connection during the work?
- Where is the original paperwork for this unit, and what does it say about installation?
Planning for a new unit is easier when you know its typical service life. The garbage disposal page turns an install year into a planning date, so you can budget for a replacement on a schedule rather than keep patching the unit as it ages.