Bosch Overheating Motor or Belt Slippage

Strong burning smell from carpet cleaner 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

Seized brush roll, Worn slipping belt, Blocked suction causing motor overload, Failing motor windings

How to Fix / Troubleshooting

Safety first: Switch off and unplug the unit immediately if you smell burning.

  • 1. Check for brush jams
    • Remove the brush roll and clear all debris.
    • Ensure the brush spins freely when reinstalled.
  • 2. Inspect drive belt
    • Examine the belt for glazing, cracks, or melted spots.
    • Replace the belt if any damage is found.
  • 3. Clean filters and airways
    • Blocked airflow can overheat the suction motor; clean all filters and check for hose blockages.
  • 4. Assess motor condition
    • If the smell persists after clearing jams and replacing the belt, the motor windings may be overheating.
    • Discontinue use and have a technician test and replace the motor if necessary.
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Repair Difficulty

Medium 3/5

Required Part

Brush Drive Belt
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