Dyson Suction motor or airflow noise issue

Robot vacuum is very loud during operation, with a high‑pitched whine or grinding noise from the suction area.

Advertisements

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Advertisements

Possible Causes

Debris in suction fan, Worn motor bearings, Air leak around cyclone seals, Cracked cyclone or bin

How to Fix / Troubleshooting

Safety first: Turn the robot OFF before inspecting. Do not insert fingers into the suction inlet while powered.

  • Empty and inspect bin: Remove the bin and cyclone assembly. Look inside for foreign objects (e.g., small toys, stones) and remove them.
  • Check seals: Inspect the rubber seals between the bin and body for damage or misalignment. Reseat or replace if torn.
  • Filter check: Ensure filters are correctly installed and not deformed, which can cause whistling.

If the noise persists and seems to come from inside the motor housing, the suction motor bearings may be failing and the motor assembly should be replaced.

Advertisements

Repair Difficulty

Hard 4/5

Required Part

Suction motor assembly
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements