Numatic Motor Overheating or Brush Bar Friction

Cordless vacuum produces a burning smell during or after use

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

Jammed brush bar, Overloaded motor from blockage, Worn motor bearings, Debris trapped near motor vents

Safety first: Stop using the vacuum immediately, remove the battery, and allow the unit to cool completely.

Check brush bar: Remove the floor head and inspect the brush bar for jams. Clear all debris and ensure it spins freely.
Inspect for blockages: Check hose, wand, and inlet for clogs that could overload the motor.
Smell near motor vents: If the burning smell is strongest at the motor housing, the motor may be failing.

Do not continue using the vacuum if the burning smell persists; the motor assembly likely needs replacement.

Hard 4/5

Motor Assembly

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