Xiaomi Overheating / Electrical Insulation Breakdown

Vacuum smells like burning plastic or hot electronics 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

Clogged filters causing high motor temperature, Failing motor windings, Overloaded brush motor, Melted wiring insulation

How to Fix / Troubleshooting

Safety first: Immediately turn off the vacuum and remove the battery. Do not continue using the unit until the cause is identified.

  • Inspect for clogs: Check dust bin, filters, wand, and floor head for blockages. Clean thoroughly.
  • Check brush head: Open the brush head and ensure the brushroll spins freely. A jammed brush can overheat the motor and melt plastic.
  • Smell test: After cooling, smell near the motor vents and brush head separately to localize the odor source.
  • If odor comes from motor: The main motor windings or insulation may be failing. Replace the motor assembly.
  • If odor comes from brush head: Replace the motorized floor head if you see melted plastic, discoloration, or burnt smell inside.
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Repair Difficulty

Hard 4/5

Required Part

Main Motor Assembly
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