Bosch Insufficient Cooling / Overload

Vacuum body becomes uncomfortably hot to touch during normal use

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Possible Causes

Blocked cooling vents, Operating continuously on maximum power, Clogged filters increasing motor load, Internal motor wear increasing current draw

How to Fix / Troubleshooting

Safety first: Switch off the vacuum and remove the battery. Allow the unit to cool before handling.

  • Clean vents: Use a soft brush or vacuum to remove dust from all ventilation grills on the motor housing.
  • Service filters: Clean or replace pre-motor and HEPA filters to restore proper airflow.
  • Adjust usage: Avoid running on maximum power for extended periods. Use medium or eco modes for general cleaning.
  • Monitor temperature: After cleaning, run the vacuum and periodically check the housing temperature. Warm is normal; too hot to hold is not.
  • Service if persistent: If overheating continues despite good airflow, the motor may be failing and should be replaced.
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Repair Difficulty

Easy 2/5

Required Part

Motor Assembly
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