Vacuum emits a burning smell or very hot air from the exhaust.

Safety first: Immediately turn off the vacuum, remove the battery, and allow the unit to cool. Do not continue using a vacuum that smells like burning plastic or insulation.

• Check for blockages: Disassemble the dust cup, cyclone, pipe, and nozzle. Remove all debris and ensure air can pass freely.
• Clean or replace filters: Service the pre‑motor and HEPA filters as per the manual. Severely discolored or deformed filters should be replaced.
• Inspect motor sound: After cooling and cleaning, briefly run the vacuum. If the motor sounds rough, squeals, or the burning smell returns quickly, stop using it.

Persistent burning smell or abnormal motor noise indicates internal motor damage. The suction motor assembly should be replaced by a technician.