Masterbuilt
Overheating Electrical Components or Melting Insulation
Strong burnt plastic or electrical smell coming from the smoker during operation.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Wiring harness touching heating element, Control board overheating, Melted wire insulation near element terminals, Foreign plastic object left inside cabinet
How to Fix / Troubleshooting
Safety first: Turn off and unplug the smoker immediately. Allow it to cool completely before inspection.
- Inspect interior: Open the door and check for any plastic packaging, ties, or accessories left inside that may be melting. Remove any foreign objects.
- Check wiring near element: From the rear or bottom access, ensure all wires are routed away from the heating element and metal surfaces that get hot. Look for melted insulation and repair or replace damaged wires.
- Examine control board: Remove the control housing and look for burnt components or discoloration on the PCB. A burnt smell here usually means the board must be replaced.
- Do not operate until resolved: Do not continue using the smoker until the source of the smell is identified and corrected to avoid fire risk.
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Repair Difficulty
Hard
4/5
Required Part
Wiring Harness
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