Your Dyson DC25 powers on. Suction sounds strong. But the brush does not spin, and carpet looks untouched. This is one of the most common DC25 problems, and it usually has a clear cause.
Most of the time, the vacuum is not broken. The DC25 stops the brush when it senses drag, heat, or belt trouble. Fix the stress point, and the brush often spins again.
This guide explains the real reasons a Dyson DC25 brush will not spin and what actually gets it moving.
Why the Brush Matters on the DC25
The DC25 uses a belt-driven brush.
The brush:
Beats carpet fibers
Lifts hair
Pulls dirt from deep down
When the brush stops, suction alone cannot clean carpet well.
Most Common Cause: Hair Wrapped on the Brush
Hair wrap is the top cause on the DC25.
Hair builds bit by bit.
It wraps tight.
Drag builds.
When drag gets too high, the brush stops to protect the belt.
How to Clean the Brush Properly
Turn the vacuum off.
Unplug it.
Lay the vacuum flat.
Flip it over.
Use scissors to cut hair along the groove on the brush.
Pull hair off in strips.
Spin the brush by hand.
It should turn smooth with no stiffness.
Hair Hidden in the Brush Ends
This part is easy to miss.
Hair often hides near the brush ends.
This adds drag you cannot see.
On the DC25, you can remove the brush.
Steps:
Remove the sole plate.
Lift the brush out.
Clean both ends fully.
Put the brush back and test again.
The Belt Is Off, Slipped, or Worn
The DC25 uses a rubber belt to spin the brush.
If the belt slips or wears out, the brush will not spin.
Signs of belt trouble:
The brush does not move at all
The brush spins by hand with no resistance
You smell hot rubber
Check the belt while the brush is out.
If it looks loose, cracked, or shiny, it needs replacement.
Brush Control Set to Hard Floor
The DC25 has a brush on and off control.
If set to hard floor, the brush will not spin.
Check the control near the base.
Set it to carpet.
Test again.
Dirty Filter Can Stop the Brush
A dirty filter slows air.
Slow air causes heat.
Heat can stop brush movement.
The vacuum may still run, which makes this feel confusing.
How to Clean the Filter
Remove the filter.
Rinse it with cold water.
Squeeze and turn it while rinsing.
No soap.
Let it dry for a full day.
Only put it back when fully dry.
Full Bin Can Add Heat
When the bin fills past the line, air slows.
Heat builds.
The brush may stop.
Empty the bin.
Wipe dust from the bin seal.
Clogs in the Head or Hose
A clog can stop the brush even if suction sounds normal.
Check these spots:
Base of the hose
Neck above the brush
Under the sole plate
Clear any stuck dirt, paper, or toys.
Hair Wrapped Around the Wheels
Hair can wrap on wheel axles.
This adds load to the cleaner head.
Spin each wheel by hand.
If it drags, pull hair free.
Overheat Shutoff
If the DC25 runs hard for a long time, heat can stop the brush.
This happens more with:
Thick carpet
Dirty filters
Long clean sessions
Turn the vacuum off.
Unplug it.
Wait at least thirty minutes.
Then try again.
When the Brush Still Will Not Spin
If you have:
Cleaned the brush and ends
Checked or replaced the belt
Cleaned the filter
Cleared clogs
And the brush still will not spin, the cleaner head may be worn.
At that stage, head repair or replacement is the real fix.
Quick Fix List
Remove hair from the brush and ends
Check and replace the belt
Set brush control to carpet
Wash and dry the filter
Empty the bin
Clear clogs
Let the vacuum cool
One of these steps solves most DC25 brush problems.
Why This Is Common on the DC25
The DC25 pulls a lot of hair.
That hair wraps fast.
Pet homes see this issue more than most.
Regular brush checks help prevent it.
The Bottom Line
If your Dyson DC25 brush is not spinning, the vacuum is usually protecting itself.
Hair wrap, belt wear, heat, or air loss stop the brush to save parts.
Clear the drag.
Restore air flow.
In many homes, the brush starts spinning again and carpet cleaning power comes right back.
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