Garbage disposal overheats and shuts off repeatedly

Symptoms

• Disposal runs for a while then cuts off on its own
• Reset button has popped when you check
• Motor housing feels noticeably warm or hot
• Happens more with long or heavy grinding sessions

Likely causes

• CommonOverloading the motor with too much food at onceContinuous heavy use without breaks builds heat faster than it can dissipate.
• CommonPartial jam making the motor work harder than normalExtra strain from debris generates excess heat even without a full stall.
• PossiblePoor ventilation around the unit under the sinkA cramped, enclosed cabinet can trap heat around the motor housing.
• PossibleAging motor with degraded windingsOlder motors run hotter for the same workload as they wear.

What to do

1. Let the disposal cool for at least 10–15 minutes before pressing the reset button again.
2. Check for and clear any partial jam using a hex wrench before restarting.
3. Break up grinding into shorter sessions with breaks rather than one long continuous run.
4. Make sure items stored under the sink aren't pressed directly against the disposal, blocking airflow.
5. Feed smaller amounts of food with plenty of water rather than large batches.
6. If overheating happens even with light, brief use, the motor itself is likely the limiting factor.

Tools and parts

• 1/4-inch hex wrench

When to call a pro

If overheating recurs with normal, light use, it's usually time to replace the disposal rather than keep resetting it.

Safety