Tristar Overheating of Internal Components / Electrical Insulation Failure

Multicooker emits a strong burning plastic or electrical smell 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

Melted wiring insulation near heating element, Failing main control PCB components, Foreign object trapped near heater, Blocked ventilation causing high internal temperature

How to Fix / Troubleshooting

Safety first: Immediately turn off and unplug the cooker. Do not continue using it until the source of the smell is identified.

  • Visual inspection: After cooling, remove the inner pot and inspect the heating plate and surrounding plastic for discoloration or melting.
  • Check for foreign objects: Look for plastic utensils, packaging, or other items that may have fallen between the pot and heater.
  • Inspect vents: Ensure all vents are clear of dust and obstructions.
  • Bottom cover check (advanced): With the unit unplugged, remove the bottom cover and look for burnt wires or components on the PCB. Do not touch or attempt to repair burnt components without proper training.

If any melting or charring is found, discontinue use and have the unit professionally repaired or replaced.

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Repair Difficulty

Professional Required 5/5

Required Part

Internal Wiring Harness / Main Control PCB
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