Sunbeam Overheating or Electrical Insulation Breakdown

Burning plastic or electrical smell during use.

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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

Grease buildup on heater causing smoke, Melted wiring insulation near heater, Failing motor windings, Overheated control PCB components

How to Fix / Troubleshooting

Safety: Immediately unplug the air fryer and move it to a non-combustible surface. Do not continue using it until the cause is identified.

Steps:

  • 1. Visual inspection: After cooling, inspect the interior for burnt food or grease on the heater. Clean thoroughly if present.
  • 2. Check wiring: Remove the base cover and inspect all wiring near the heater and motor for melted insulation or burn marks. Replace any damaged harnesses.
  • 3. Inspect PCB: Look for burnt components or darkened areas on the main control PCB. A burnt board must be replaced.
  • 4. Motor check: If the smell seems to come from the fan area and is accompanied by unusual noise, the motor windings may be overheating; replace the motor.
  • 5. Test cautiously: After repairs and cleaning, run the unit under supervision. If the smell persists, discontinue use and consult a technician.

Warning: Persistent burning smell is a fire hazard. Do not ignore it.

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Repair Difficulty

Hard 4/5

Required Part

Internal Wiring Harness
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