Samsung Overheating Wiring or Component Failure

Air fryer emits a burning plastic or electrical smell during use.

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.

Possible Causes

Melted wire insulation near heater, Loose electrical connection arcing, Failing main PCB component, New-unit curing smell mixed with grease residue

How to Fix / Troubleshooting

Safety first: If the smell is strong or you see smoke, unplug immediately and do not use until inspected.

Basic checks:

For a new unit, run it empty at high temperature for 10–15 minutes per the manual to burn off manufacturing residues, ensuring good ventilation.
If the smell persists or worsens, open the unit for inspection.

Internal inspection:

Check all wiring harnesses near the heater and fan for melted insulation or discoloration.
Inspect the main control PCB for burnt components or darkened areas.
Look for plastic parts warped by heat near the heater shield.

Corrective action:

Replace any burnt wiring and secure it away from hot surfaces.
Replace a damaged main control PCB or melted plastic components.
Do not continue using the unit until the source of the smell is identified and corrected.

Repair Difficulty

Professional Required 5/5

Required Part

Internal Wiring Harness

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