If your vacuum suddenly stops picking up dirt but the motor still runs, a broken belt is the most likely culprit. Here's how to fix it.
Signs Your Belt Is Broken
- The brush roll isn't spinning when the vacuum is on
- You smell burning rubber near the brush roll housing
- The vacuum picks up less dirt than usual despite full suction
- You hear a clicking or slipping sound from the base
What You Need
- A replacement belt (check your vacuum's model number for the correct size)
- A Phillips screwdriver (for most models)
- Scissors (to clean tangled hair from the brush roll)
Step 1: Unplug the Vacuum
Always unplug your vacuum before working on it. This is non-negotiable — the brush roll can start unexpectedly on some models.
Step 2: Access the Brush Roll
Turn the vacuum upside down. Most upright vacuums have a cover plate held by clips or screws. Remove the cover to expose the brush roll and belt.
Step 3: Remove the Old Belt
Lift the brush roll out of its housing. Slide the old belt off the brush roll and the motor shaft. If the belt is broken, remove all pieces — leftover rubber can cause problems.
Step 4: Clean the Brush Roll
While you have the brush roll out, use scissors to cut and remove any tangled hair, thread, or debris. A clean brush roll improves cleaning performance significantly.
Step 5: Install the New Belt
Loop the new belt over the motor shaft first, then over the brush roll. Align the brush roll back into its housing and rotate it by hand to ensure the belt moves freely without binding.
Step 6: Test
Replace the cover plate, plug in the vacuum, and turn it on. The brush roll should spin freely. Check that the belt isn't slipping by tilting the vacuum and watching the brush roll for a few seconds.
Replace your vacuum belt every 6-12 months for optimal performance, even if it hasn't broken yet. Belts stretch over time, reducing brush roll speed and cleaning effectiveness.
