Garbage disposals

Garbage disposal smells like burning

A burning smell is a warning sign that the motor is overheating or a jam is straining it hard, and it should stop the disposal immediately rather than be worked through.

Difficulty
Moderate
Time
20–40 minutes
DIY cost
$0
Pro cost
$100–$200

Symptoms

  • Acrid or electrical burning smell during or after use
  • Disposal feels hot to the touch
  • Smell accompanies a jam or the reset button tripping
  • Smoke or haze near the unit (rare but serious)

Likely causes

  • CommonMotor straining against a jamA stuck flywheel forces the motor to work far beyond normal load, generating heat and a burning smell.
  • PossibleOverheated or failing motor windingsInsulation on aging windings can smell like burning when it degrades under heat.
  • PossibleElectrical fault in the wiring or connectionA loose or damaged connection can overheat and produce a burning odor.

What to do

  1. Turn off the disposal switch immediately and unplug it or cut power at the breaker.
  2. If you see any smoke, leave the area and do not restore power; treat it as an electrical hazard.
  3. Once power is off, let the unit cool completely, at least 15–20 minutes, before touching it further.
  4. Check for and clear any jam once cool, using a hex wrench and tongs.
  5. Inspect the cord and plug for scorch marks or melted plastic.
  6. Do not restore power if you see any burn marks, melted insulation, or continue to smell burning with the unit off and cool.

Tools and parts

  • 1/4-inch hex wrench
  • Tongs
  • Flashlight

When to call a pro

If you see scorch marks, melted plastic, or the smell doesn't clear with the unit off and cool, call an electrician or appliance tech before using it again, and consider it likely due for replacement.

Safety

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.