If your vacuum still has suction but the brush roll has stopped spinning, the belt is the problem. The belt connects the motor to the brush roll, and it stretches or snaps over time. Replacing it is a ten-minute job and costs a few dollars.
This guide covers how to tell the belt is the problem, and how to replace it.
- Symptom: suction works but the brush roll does not spin.
- Also: a burning smell, or a squealing noise.
- Cost: $5–$15 for a replacement belt.
- Time: about 10 minutes.
- Tip: buy a two-pack — they fail again eventually.
Symptoms of a bad belt
| Symptom | What it means |
|---|---|
| Brush roll not spinning | Belt snapped or stretched |
| Burning smell | Belt slipping and overheating |
| Squealing noise | Belt slipping on the pulley |
| Vacuum not picking up | Brush roll not agitating |
| Belt visible and loose | Stretched, needs replacing |
A burning smell means the belt is slipping and generating heat. Keep running it and you risk damaging the motor or melting the belt onto the pulley. Turn it off and replace the belt.
Step-by-step
- Unplug the vacuum — always, before working on it.
- Flip it over and remove the base plate screws.
- Lift off the base plate to expose the brush roll and belt.
- Note how the belt runs around the motor pulley and brush roll.
- Remove the old belt and the brush roll if needed.
- Loop the new belt over the motor pulley first.
- Stretch it over the brush roll and reseat the brush roll.
- Refit the base plate and screws, then test.
Belt types
| Type | Looks like | Found on |
|---|---|---|
| Flat belt | A flat rubber band | Most uprights |
| V-belt | A V-shaped cross-section | Older uprights |
| Geared belt | Toothed on the inside | Some modern vacuums |
| Stretch belt | Thin, elastic | Many modern uprights |
Check your vacuum's manual or the old belt to identify the type. A flat belt is the most common. Geared belts are used on some modern vacuums and must be fitted the right way round.
Preventing belt failure
- Clear hair and string from the brush roll regularly.
- Do not vacuum over the cord — it jams the brush roll.
- Adjust the height for the floor type.
- Replace the belt every 6 to 12 months as maintenance.
- Keep a spare belt so you are not stuck mid-clean.
- Check the brush roll bearings if belts keep failing.
If your vacuum's brush roll stopped spinning, the belt has snapped or stretched. Unplug the vacuum, remove the base plate, loop the new belt over the motor pulley first, then over the brush roll. It takes ten minutes and costs a few dollars.
Frequently asked questions
Replacement belts
Keep a spare belt so a snapped one does not stop your cleaning.
