Symptoms
- Brush roll turns normally on the floor
- No airflow felt at the nozzle opening
- Motor sounds like it's running at full speed
- Suction was fine before a sudden drop
Likely causes
- CommonFull bin or bag blocking airflowThe brush roll and suction systems are largely separate, so a full bin can kill suction while the brush still spins.
- CommonClogged filterA blocked filter restricts airflow to the motor even with the brush roll working.
- CommonBlockage in the hose or airway separate from the brush rollThe suction path and brush drive are different systems, so a clog can hit one without affecting the other.
- PossibleTorn hose or cracked housing causing an air leakA leak lets air bypass the intended path, weakening suction at the nozzle.
- Less commonDetached or damaged suction fanThe internal fan that creates suction can become detached from the motor shaft, an internal repair.
What to do
- Empty the bin or bag and check the filter for clogging.
- Detach the hose and check for blockages along its length.
- Inspect the nozzle's internal airway separately from the brush roll mechanism.
- Check for any visible cracks in the hose or vacuum body that could leak air.
- Listen closely to the motor pitch, since a detached fan often sounds different, like a lighter whirring.
- Reassemble after clearing all found blockages and test suction again.
- If suction is still absent with a normally spinning brush and no visible blockage, have a technician check the fan and motor coupling.
Tools and parts
- Flashlight
Vacuum filterSearch: “vacuum filter replacement”
When to call a pro
If the brush roll spins fine but suction stays gone with no blockage found, a technician should check the fan and motor shaft coupling.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.