Dishwasher Smells Like Burning

Quick answer

A burning smell from your dishwasher often indicates overheating, a clogged filter, or electrical issues. Turn off the power, check for blockages, and inspect the heating element.

Confirm the symptom

• Smell is acrid or electrical in nature
• Oc...
• Oc...

Tools and prep

• Safety gloves
• Screwdrivers
• Flashlight
• Plastic putty knife
• Clean cloth
• Distilled water
• Turn off power at circuit breaker

Step-by-step troubleshooting

1. Step 1: Power Off and Ventilate
   Do: Turn off the dishwasher and unplug it or turn off the circuit breaker. Open the door to let it cool.
   Observe: Smell may dissipate if it was from trapped steam or food particles.
   Means: The issue may be temporary, like a clog or food residue.
   Next: Step 2
2. Step 2: Check for Clogs
   Do: Remove the bottom rack and filter. Use a flashlight to inspect the drain hose and pump for debris.
   Observe: Food particles or grease buildup in the filter or drain hose.
   Means: Clogs can cause water to sit and overheat, creating a burning smell.
   Next: Step 3
3. Step 3: Clean the Filter and Pump
   Do: Scrub the filter with warm, soapy water. Use a plastic putty knife to remove stubborn debris from the pump area.
   Observe: Clean filter and pump with no visible blockages.
   Means: Clearing clogs can resolve overheating and odor issues.
   Next: Step 4
4. Step 4: Inspect the Heating Element
   Do: Look at the heating element at the bottom of the dishwasher. Check for discoloration or damage.
   Observe: Blackened or cracked heating element.
   Means: A faulty heating element can emit a burning smell when overheating.
   Next: Step 5
5. Step 5: Check Electrical Connections
   Do: Inspect the wiring and connections behind the control panel for frayed wires or burning smells.
   Observe: Burn marks, melted insulation, or charred components.
   Means: Electrical faults can cause dangerous burning smells and require immediate attention.
   Next: Step 6
6. Step 6: Test Run with Vinegar
   Do: Run a hot water cycle with a cup of distilled white vinegar in a dishwasher-safe container.
   Observe: Smell should improve if the issue was due to residue or mildew.
   Means: Vinegar helps dissolve grease and sanitize the interior.
   Next: Step 7
7. Step 7: Reconnect and Test
   Do: Plug the dishwasher back in or restore power. Run a short cycle to see if the smell returns.
   Observe: No burning smell during or after the cycle.
   Means: The issue was likely resolved by cleaning or a temporary malfunction.
   Next: Step 8
8. Step 8: Monitor for Recurrence
   Do: Use the dishwasher normally and check for any return of the smell over the next few days.
   Observe: Persistent or recurring burning odor.
   Means: The problem may involve a deeper electrical or mechanical issue.
   Next: Call a professional

Common causes

Parts matching

Common parts that may be needed to resolve a burning smell:

• Dishwasher filter (often clogged and needs cleaning or replacement)
• Heating element (replace if damaged or discolored)
• Pump assembly (replace if clogged or malfunctioning)
• Dishwasher cleaner or vinegar (for descaling and sanitizing)
• Electrical wiring kit (if damaged wires are found)

Always match parts to your dishwasher model. Check the user manual or model number for compatibility.

When to call a professional

• Persistent burning smell after cleaning and inspection
• Visible electrical damage or sparks
• Dishwasher fails to heat water or drain properly
• Unusual noises or vibrations during operation
• Smoke or strong electrical odor detected

FAQ

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