Sink Disposal Not Working: Fix It Yourself

Quick answer

If your sink disposal isn't working, first check the circuit breaker and reset the unit. If it still doesn't work, unplug or turn off the power, then inspect for jams or reset the internal reset button. If these steps don't resolve the issue, the disposal may need professional repair.

Confirm the symptom

• Garbage disposal is silent when turned on
• No grinding or noise from the disposal
• Circuit breaker for the disposal has tripped
• Reset button on the disposal is popped out
• Disposal works intermittently or only sometimes

Tools and prep

• Rubber gloves
• Screwdriver (flathead and Phillips)
• Flashlight
• Plug in a power strip with a circuit breaker
• Turn off water supply to the sink
• Unplug the disposal or turn off the circuit breaker before starting

Step-by-step troubleshooting

1. Check Power Supply
   Do: Verify the disposal is plugged in or the circuit breaker hasn't tripped.
   Observe: Circuit breaker is on and disposal is receiving power.
   Means: Power supply is not the issue.
   Next: Reset the disposal.
2. Reset the Disposal
   Do: Press the reset button on the bottom of the disposal unit.
   Observe: Reset button clicks and the disposal starts working.
   Means: The disposal was tripped and is now reset.
   Next: Test the disposal.
3. Test the Disposal
   Do: Turn on the disposal and check if it runs smoothly.
   Observe: Disposal runs without noise or vibration.
   Means: The disposal is working properly.
   Next: Finish.
4. Inspect for Jams
   Do: Use a flashlight to look inside the disposal for visible obstructions.
   Observe: Foreign objects or debris are blocking the blades.
   Means: The disposal is jammed and needs clearing.
   Next: Clear the jam.
5. Clear the Jam
   Do: Use a long-handled tool (like a broom handle or pliers) to carefully turn the disposal flywheel and remove the obstruction.
   Observe: Obstruction is removed and the flywheel turns freely.
   Means: The jam is cleared.
   Next: Reset the disposal and test it.
6. Check for Electrical Issues
   Do: Test the disposal with a voltage tester to ensure it's receiving power.
   Observe: Voltage tester shows no power to the disposal.
   Means: There's an electrical issue with the wiring or circuit.
   Next: Call a professional electrician.
7. Inspect the Motor
   Do: Unplug the disposal and remove the cover to check for signs of motor failure (burn marks, unusual smells).
   Observe: Motor shows signs of damage or overheating.
   Means: The motor may be faulty and needs replacement.
   Next: Call a professional plumber.

Common causes

Parts matching

If your garbage disposal needs replacement parts, match these common issues to the right components:

• Reset button – Often needs no replacement if the issue is resolved by pressing it.
• Motor – Requires a new garbage disposal unit if faulty.
• Blades – Usually replaced as part of a new disposal unit.
• Wiring – Requires electrical repair or a new disposal unit if damaged.
• Flywheel – Often replaced if jammed or damaged, but typically part of a new unit.

Before purchasing parts, check the disposal's model number and consult the manufacturer's website for compatible replacements.

When to call a professional

• The disposal still doesn't work after resetting and clearing jams.
• You detect a burning smell or see signs of motor damage.
• You're unsure about electrical wiring or motor replacement.
• The disposal is old and frequent repairs are needed.
• You hear unusual noises but can't identify the cause.

FAQ

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