LG Overheating / Insulation or Grease Burning

LG air fryer emits a burning smell or visible smoke (not from food) 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

Heavy grease buildup on heater and cavity, Foreign object (plastic, packaging) near heater, Wiring insulation overheating, Failing heater with hot spots

How to Fix / Troubleshooting

Safety first: Turn off and unplug the unit immediately. Open windows for ventilation. Do not continue operation until inspected.

Steps to address burning smell:

  • Inspect interior: After cooling, remove basket and pan. Look for melted plastic, paper, or packaging stuck near the heater or fan.
  • Deep clean: Thoroughly clean the heater guard, cavity walls, and basket with a degreaser safe for appliances. Remove carbonized grease deposits.
  • Check wiring: Remove the cover and inspect wiring near the heater and fan for discoloration, melted insulation, or burn marks. Replace any damaged wiring with high-temp rated wire.
  • Examine heater: Look for warped or sagging heater coils that may be contacting metal surfaces. Replace the heating element if damaged.

Warning: If smoke appears to come from inside the control panel or PCB, discontinue use and have the unit professionally serviced.

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Repair Difficulty

Medium 3/5

Required Part

Heating Element Assembly
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