ROBOFAULTS
ECOVACS·FAULT SYM WARN

DEEBOT brushes not spinning

Severity: Warning — the robot keeps driving but leaves debris behind until the brushes turn again N79/500/600OZMO 920/950/T5T8/N8/T9+T10/X1/T20/X2 OMNI
Last verified: 2026-09-04 Tools: cleaning tool with blade, dry cloth Time: ~10 min Difficulty: easy

DIRECT ANSWER

Brushes that stop spinning are almost always tangled with hair. ECOVACS' official fix: remove the main brush cover by its two tabs, clean the roller with the cleaning tool, and wipe the side brushes and their slots dry.
#meaning · #causes · #fix · #still · #parts · #models · #faq — link straight to any section

COMMON CAUSES · RANKED

1

Hair wrapped around the main brush MOST COMMON

Hair winds around the roller and its end caps until the motor stalls. ECOVACS' routine cuts it off with the cleaning tool and allows a rinse under water as long as the brush dries completely before it goes back in.

2

Debris in the side brush slots

ECOVACS has you pull the side brushes off and wipe brush and slot with a dry cloth; grit under the hub stalls them even when the arms look clean.

3

Brush cover or brush not seated

A cover whose two tabs did not click, or a roller dropped in the wrong way round, leaves the drive end disengaged; the brush spins by hand and does nothing in the robot.

4

Brush worn past its service life UNCOMMON

ECOVACS' manual schedule replaces side brushes every 3-6 months and the main brush every 6-12; matted bristles and bent arms do not recover with cleaning.

HOW TO FIX IT

SAFETY · READ THIS FIRST

Power the robot off before you touch the brushes, and cut wrapped hair away from your fingers with the cleaning tool's blade.

Power off and flip the robot

Switch the DEEBOT off and turn it over on a soft surface; that is ECOVACS' first line, and it keeps fingers away from a brush that may restart.

Remove the main brush cover and the brush

Push the two tabs on the main brush cover to release it, lift the cover away and pull the main brush out of its bay.

Cut the roller clean, rinse if you like, dry fully

Use the cleaning tool to cut and remove hair tangled around the main brush and its end caps. ECOVACS allows rinsing the brush under water, but it must be completely dry before it goes back in.

Service the side brushes and their slots

Pull the side brushes off their posts and wipe the brushes and the slots with a dry cloth before snapping them back on.

Refit until the tabs click, then retest

Seat the roller with its drive end in place, press the cover until both tabs click, empty the dust bin and check the suction intake, then run a short clean and watch both brushes turn.

Replace a brush that is past its schedule

ECOVACS' manual schedule is side brushes every 3 to 6 months and the main brush every 6 to 12; a brush that still stalls after cleaning and refitting is due.

IF IT STILL FAILS

IF
The main brush spins freely by hand but not in the robot
→ Check it went in the right way round with the drive end seated, and that both cover tabs clicked. A roller that sits proud of the bay never engages the motor, and cleaning it again will not help. Source: ECOVACS Support — Main brush and/or side brushes not rotating
IF
Only a side brush has stopped
→ Pull it off its post and clean the slot underneath; grit under the hub is ECOVACS' reason for the dry-cloth step. A bent or matted side brush is a replacement, on a 3-6 month schedule anyway. Source: ECOVACS Support — Main brush and/or side brushes not rotating
IF
The robot keeps announcing a tangled or malfunctioning brush after a full clean
→ Look at the end caps and the bay, not the bristles; hair packed inside the caps stalls a clean-looking roller. If the brush is past 6 to 12 months, fit a new one; if a new brush stalls too, the brush motor is a Customer Care case. Source: ECOVACS DEEBOT 601 instruction manual — maintenance schedule (official PDF)

WHEN TO STOP

STOP HERE

Power off before every step, and never put a damp brush back in; ECOVACS allows the rinse only if the brush is completely dry. If a new, correctly seated main brush still will not turn, or you smell burning, stop and contact ECOVACS Customer Care through help.ecovacs.com; the brush motor is not a user part and opening the housing voids the warranty.

COMPATIBLE PARTS

As an Amazon Associate, RoboFaults earns from qualifying purchases. Prices are shown on the retailer's site.

Main brush — OZMO 920/950/T5, T8, N8 & T9+ series

Main brush — OZMO 920/950/T5, T8, N8 & T9+ series

OZMO 920OZMO 950OZMO T5T8 AIVIT8N8N8 PRON8 PRO+T9+

Release the brush cover tabs, lift the roller out and cut away wrapped hair before deciding it needs replacing — the official brushes-not-rotating fix clears the roller and both end caps first.

Compatibility and replacement details → Check price on Amazon ↗
Side brushes — OZMO 920/950/T5, T8, N8 & T9+ series

Side brushes — OZMO 920/950/T5, T8, N8 & T9+ series

OZMO 920OZMO 950OZMO T5T8 AIVIT8N8N8 PRON8 PRO+T9+

ECOVACS groups these LiDAR generations into one accessory family — its own Buddy Kits list OZMO 920/950/T5/T8/N8 compatibility together. Clean the connector under each brush when swapping; debris there mimics a brush fault.

Compatibility and replacement details → Check price on Amazon ↗
Main brush — N79 family & DEEBOT 500/600/601/661

Main brush — N79 family & DEEBOT 500/600/601/661

N79N79SN79W500600601661

ECOVACS' official schedule cleans the roller weekly with the multi-function tool (careful — its edges are sharp) and replaces it every 6-12 months; a solid-red four-beep alarm that survives cleaning means the bristles are done.

Compatibility and replacement details → Check price on Amazon ↗
Side brushes — N79 family & DEEBOT 500/600/601/661

Side brushes — N79 family & DEEBOT 500/600/601/661

N79N79SN79W500600601661

These DEEBOTs run two three-arm side brushes that pull straight off their posts. ECOVACS' official schedule cleans them every two weeks and replaces them every 3-6 months — sooner if the solid-red two-beep alarm keeps returning.

Compatibility and replacement details → Check price on Amazon ↗

MODELS AFFECTED

Model Status Firmware Parts Verified
DEEBOT N79 / N79S / N79W
The N79 family takes its own main and side brushes (listed on the parts page); the OZMO brushes do not fit it. · Source
active — Parts → 2026-07-07 · Source
DEEBOT 500 active — Parts → 2026-07-07 · Source
DEEBOT 600 / 601 / 661 active — Parts → 2026-07-07 · Source
DEEBOT OZMO 920 active — Parts → 2026-07-07 · Source
DEEBOT OZMO 950
The OZMO 920/950 and T5 share the OZMO brush set; ECOVACS' schedule for these robots replaces side brushes every 3-6 months and the main brush every 6-12. · Source
active — Parts → 2026-07-07 · Source
DEEBOT OZMO T5 active — Parts → 2026-07-07 · Source
DEEBOT OZMO T8 AIVI / T8 family active — Parts → 2026-07-07 · Source
DEEBOT N8 / N8 PRO / N8 PRO+ active — Parts → 2026-07-07 · Source
DEEBOT T9+ active — Parts → 2026-07-07 · Source
DEEBOT N10 / N10 PLUS active — Parts → 2026-07-07 · Source
DEEBOT T10 OMNI active — Parts → 2026-07-07 · Source
DEEBOT X1 OMNI / X1 TURBO / X1 PLUS active — Parts → 2026-07-07 · Source
DEEBOT T20 OMNI active — Parts → 2026-07-07 · Source
DEEBOT X2 OMNI active — Parts → 2026-07-07 · Source
DEEBOT T80 OMNI active — Parts → 2026-07-07 · Source

Models resolved from the series chips above. Support status comes from our EOL library; rows link to the matching parts and firmware pages.

FIELD NOTES

WHAT THE OFFICIAL DOCS LEAVE OUT — AND WHAT OWNERS REPORT

ECOVACS' brush FAQ is five sentences, and it contains one line worth knowing: the main brush "can be rinsed under water however should be dried completely before it is reinstalled". The rest of the method is mechanical and exact, power off, push the two tabs on the main brush cover, cut the hair off with the cleaning tool, wipe the side brushes and their slots with a dry cloth.

What the FAQ leaves out is the schedule, which lives in the manuals: side brushes every 3 to 6 months, the main brush every 6 to 12. Many "brush not spinning" cases are simply a brush that has passed those dates and whose bristles no longer grip the floor or whose arms have bent; cleaning it does nothing. ECOVACS' 2026 blog on the same symptom adds a maintenance interval of 2 to 4 weeks for clearing the roller, though most of that post is written for upright vacuums with belts, which these robots do not have.

The mechanical case owners miss is seating. A roller that spins beautifully in your hand and does nothing in the robot is usually in the wrong way round or under a cover whose tabs never clicked; the drive end has to engage before the motor can do anything.

FAQ · REAL QUESTIONS

How do I fix a DEEBOT main brush malfunction?

Power off and flip the robot, push the two tabs on the main brush cover, lift out the brush, cut the wrapped hair off with the cleaning tool (a rinse is allowed if it dries completely), wipe the side brushes and slots dry, and refit until both tabs click. That is ECOVACS' whole procedure.

Why does my DEEBOT keep saying the brush is tangled?

Because the hair you can see is not the hair that matters. Pull the end caps off the roller and clear what is packed inside them, check the brush went back in the right way with the cover tabs clicked, and if it is past ECOVACS' 6-12 month life, replace it.

Can I wash the DEEBOT main brush?

Yes. ECOVACS says the main brush can be rinsed under water, on one condition, that it is dried completely before it goes back in. Side brushes get a dry cloth only.

How often should DEEBOT brushes be replaced?

ECOVACS' manual schedule is side brushes every 3 to 6 months and the main brush every 6 to 12 months, sooner with pets or long hair. A brush that still stalls after a full clean and a correct refit has usually reached that point.