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If the inside of your vacuum smells like burning rubber while it's in use, there are a few potential reasons for this phenomenon:

  1. Overheating Motor: The most common reason for a burning rubber smell in a vacuum is an overheating motor. Vacuum cleaners use electric motors to power their suction, and if the motor gets too hot, it can produce a burning odor. When you turn off the vacuum, the motor cools down, and the smell dissipates.

  2. Worn or Slipping Belt: Many vacuum cleaners use belts to drive the brush roll or agitator that helps pick up dirt from carpets. If the belt is worn, damaged, or slipping, it can create friction and generate a burning rubber smell.

  3. Clogged Filter or Hose: A clogged filter or hose can cause the motor to work harder, leading to overheating and the burning odor. Proper airflow is essential for the vacuum to function efficiently.

  4. Foreign Object: Sometimes, a foreign object may get stuck in the vacuum, such as a piece of plastic or a small item that accidentally got vacuumed up. This object can create friction and generate the burning smell.

  5. Electrical Issue: There could be an electrical problem within the vacuum that is causing excess heat and the associated smell.

It's important to address the issue promptly to avoid further damage to the vacuum or potential safety hazards. Here's what you can do:

  1. Check the Filters and Hoses: Make sure all filters and hoses are clean and free from blockages. Regularly cleaning or replacing the filters is essential for the vacuum's proper functioning.

  2. Inspect the Belt: If your vacuum has a belt-driven brush roll, check for signs of wear, damage, or slipping. Consult your vacuum's user manual for instructions on how to replace the belt if necessary.

  3. Remove Foreign Objects: Turn off and unplug the vacuum, then inspect the brush roll and other parts for any foreign objects. Remove any obstructions carefully.

  4. Allow Cooling Time: If the vacuum smells like burning rubber during extended use, give it some time to cool down before using it again.

  5. Professional Checkup: If the problem persists or you're unsure about handling it yourself, consider taking the vacuum to a professional for inspection and repairs.

Remember always to ensure your vacuum is unplugged before attempting any maintenance or inspections. Safety should be a top priority when dealing with electrical appliances.

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