A Dyson V10 that has become louder, or that whines, rattles or grinds, is reporting airflow or a mechanical issue, and since the V10 has no screen, you work out the cause from the sound. A high whine or a pitch that rises is usually starved airflow: a full bin above the line, a blocked wand or inlet, a dirty or damp filter or a clogged cyclone makes the motor spin faster.
The checks in more detail
Empty the bin, check the wand and the bin inlet for a clog and wash the filter in cold water, then let it dry for twenty-four hours before refitting it. A damp filter is a frequent cause of a whine and reduces suction. A rattle suggests an object in the cleaner head or the bin, such as a stone or a button. Remove the bin and the wand and look for the item, and check the brush bar housing. A grinding noise or a growl on hard floors points to the brush bar:
hair wound round its ends or a worn bearing rubs, so remove the bar, cut away the hair and turn it by hand to feel for roughness. A bar that does not turn freely needs cleaning or replacing. Check that the bin and the wand are clicked in firmly, since a loose bin rattles. A battery that is not seated can also rattle. The motor itself may be wearing. A scream or a grating sound with a clear path, a dry filter and a free brush bar suggests worn bearings,
and Dyson can repair or replace the motor, in warranty or for a charge. If there is a burning smell, stop using the vacuum, remove the battery and contact Dyson. Run the vacuum in a lower mode when you do not need full power, since the top mode is much louder. Keep the filter clean monthly. Record the sound on your phone for Dyson, who can judge by ear, and contact them with the serial number from the rating plate if the noise persists.
Differential
Likely causes of “Dyson Cyclone V10 cordless vacuum makes a loud, rattling, whistling or grinding noise”, and how to tell them apart
- 1
Starved airflow
What separates it A high whine
How to confirm Empty the bin, clear the airway and wash the filter
- 2
A damp filter
What separates it A whine and weak suction
How to confirm Dry the filter for twenty-four hours
- 3
An object in the head or bin
What separates it A rattle
How to confirm Remove the bin and wand and look
- 4
Hair on the brush bar or worn bearings
What separates it Grinding on hard floors
How to confirm Cut away hair or replace the bar
- 5
A worn motor
What separates it A scream with a clear path
How to confirm Contact Dyson
Before you touch a setting
Record this first — changing settings destroys the evidence
- When the problem happens in the cycle
- Any code on the display
- Whether other appliances on the circuit work
- The model and serial numbers
Try in this order
0 of 6 completedEmpty the bin
ReversibleAnd clear the wand and inlet.
Wash and dry the filter
ReversibleFor a day.
Remove the brush bar
ReversibleAnd cut away hair.
Check the bin, wand and battery
ReversibleFor seating.
Use a lower mode
ReversibleWhen you can.
Contact Dyson
ReversibleIf it persists.
Model-specific
What is true of this model and not of its siblings
- Three modes
- The top mode is loudest.
- Filter
- Dry it fully.
Stop boundary
When this stops being a self-service repair
- !If the steps do not clear it, contact the maker with the model and serial number
- !Check the warranty before a repair
- !Stop using the appliance if it smells hot or trips the breaker
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Why is my V10 louder?+
Starved airflow or a stalled brush bar.
Does a damp filter matter?+
Yes.
Is a screaming motor serious?+
It may be worn.
Can I record the sound?+
Yes, for support.