How to Clean a Xiaomi Robot Vacuum Cleaner Brush: From Hair to Old Mud

Xiaomi’s vacuum cleaners have become indispensable cleaning aids, but their effectiveness depends on the condition of the brushes. Clogged with hair, animal hair or dust, rollers not only collect garbage worse, but also increase the load on the engine, reducing the life of the device. According to service centers, up to 40% of robot vacuum breakages are associated with late cleaning of rotating elements.

In this article, you will find detailed instructions for cleaning both the main roller brush and side “tissues” for all popular models – from the budget Mi Robot Vacuum-Mop 2 Lite to the flagship Xiaomi Robot Vacuum-Mop 2 Ultra. We will discuss not only standard methods, but also ways to remove old dirt without damaging plastic parts, and also tell you how to often perform the procedure for different types of coatings.

Why it is important to clean robot vacuum cleaners regularly

Many users ignore care recommendations until the robot begins to sneeze or grind loudly, meanwhile, contaminated brushes affect:

• 🔋 Energy consumption – the engine requires 20-30% more power to rotate the roller
• 📉 Cleaning quality – hair is wound on the axle, reducing the area of contact with the floor
• 🔊 Noise level – the imbalance of the roller due to the mud lumps creates vibrations
• 🛠️ Parts resource – abrasive particles accelerate wear of bearings

According to internal tests Xiaomi, when cleaning brushes weekly, the average life of the robot vacuum cleaner increases by 18-24 months. Especially critical to monitor the condition of the roller owners of long-haired animals - the hair of cats and dogs forms dense "felt" lumps that are difficult to remove without special tools.

What tools will be needed to clean

For basic cleaning, it is enough what is at hand, but for deep cleaning it is better to prepare:

⚠️ Warning: Never use metal brushes or abrasive sponges - they damage the antistatic coating of the bristles, causing dust to stick to the brush instead of collecting in a container.

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To remove sticky contaminants (such as dried juice), wet the cotton-coat disc in a solution of water and glass washing products, then gently wipe the bristles. Alcohol wipes will also work, but do not overdo it - the plastic can become brittle.

Step-by-step: how to clean the main brush

The main roller (aka roller brush) is the most problematic element. In Xiaomi Mi Robot Vacuum models, it is mounted on latches, in Viomi and Dreame, sometimes on screws. Consider a universal algorithm:

1. Disconnect the robot from the charging station and turn it over (it is better to do this on a soft surface so as not to scratch the body).
2. Find the red or orange latches on the sides of the roller — they are usually closer to the wheels. Press them at the same time and pull the brush over you.
3. If there is no latch, look for screws under a cross screwdriver or hexagon (in models Xiaomi S10/S11 they are hidden under rubber plugs).
4. Remove plastic nozzles from the ends of the axis - dirt often accumulates under them.

Now we're going to clean up:

Remove hair and threads with scissors (cut along the axis!)

Clean the grooves with a toothpick

Wash the bristles with warm water (not higher than 40 ° C)

Dry the brush for at least 12 hours before installation

Check the bearings for backlash (swing axle to the sides)

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🔧 For complex contaminants: If the bristles are filled with greasy dirt (e.g. after cleaning the kitchen), soak the brush in a warm soapy solution for 15-20 minutes, then clean with a soft brush. Don't use hot water - it deforms the plastic!

Cleaning side brushes: nuances and life hacks

Side brushes ("tittles") are often ignored, but they are equally important - they drive the garbage to the main roller. In Xiaomi models, they are attached in two ways:

• 🔄 On the latch - pull the brush up with force (in Mi Robot Vacuum 1C)
• 🔧 On the screw - unscrew the anti-clockwise mount (in Viomi V3)

🔍 The main problem with side brushes is the hair that's wound at the base, and it's hard to remove because of the small size of the part.

1. Use pliers with thin sponges to grab and pull your hair.
2. Heat the tip of the needle with a lighter (cool!) and squeeze it under the winding - the hair will be easier to slide.
3. For models with silicone blades (for example, Dreame D9) use alcohol - it dissolves sticky dirt.

⚠️ Warning: After cleaning, make sure that the brush rotates freely — if there is hair on the axle, it will slow down and overheat the motor. In Xiaomi STYJ02YM models and similar side brushes have built-in rev sensors — if they rotate unevenly, the robot can give an E5 error (brush jamming).

How to clean a brush from old dirt and mold

If the robot vacuum cleaner has not been cleaned for a long time, the brushes may appear black plaque (mold) or dried dirt that cannot be removed by conventional methods.

1. Ultrasonic bath (if any) - 10 minutes in a solution of water and vinegar (1: 1) at a temperature of 40 ° C.
2. Citric acid - 2 tbsp. spoons per 1 liter of water, soak for 30 minutes (removes lime plaque).
3. Hydrogen peroxide 3% - apply for 5 minutes to disinfect and bleach the bristles.

🧪 Chemicals: For severe contaminants, Cillit Bang (dilute 1:3) or Mr. Proper for engineering is suitable. Apply only to the bristles, avoiding plastic fasteners - aggressive substances can eat the boulders of bearings.

After any "chemical" treatment:

1. Wash the brush thoroughly with running water
2. Dry with a dryer (cold mode!) or leave on the battery for 24 hours
3. Check before installing if there is any odor left - if so, repeat drying

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Never use acetone, gasoline or solvents to clean your brushes! they break down plastic and rubber seals, causing dust to enter the bearings and rapid wear.

Cleaning frequency: recommendations for different conditions

Xiaomi recommends cleaning your brushes after every 3-5 cleaning cycles, but in practice, the frequency depends on:

📊 Lazy Tips: In the Mi Home app, set up a brush cleaning reminder. Go to Device → Settings → Maintenance Reminders. Self-cleaning base robots (e.g., Xiaomi Robot Vacuum-Mop 2 Pro) require brush cleaning 2 times less often, but still need control!

Common cleaning errors and how to avoid them

Even experienced users sometimes make mistakes that lead to breakdowns.

• 🚫 Dry brushing — the dust spreads and gets into the bearings. Always use a wet wipe or vacuum cleaner.
• 🚫 Pressing the roller hard, it breaks the latches. If the brush doesn't come off, check if the debris is blocking it.
• 🚫 Using sharp objects (knives, screwdrivers) to remove dirt - scratches the plastic and tears the bristles.
• 🚫 Incomplete drying before installation - leads to corrosion of metal axes and mold.
• 🚫 Replace brushes with non-original ones – cheap counterparts often have a different diameter, which increases the load on the motor.

⚠️ Warning: In models with laser sensors (e.g. Xiaomi Mi Robot Vacuum-Mop 2) after brushing, be sure to wipe the lidar glass with a lidar-free wipe!

🔧 Post-Brush Diagnostics: Once you have your brushes installed, run the robot in test mode. In the Mi Home app, select Manual Control and check:

• The uniformity of rotation of the roller (no jerks)
• Absence of extraneous sounds (squeaking, knocking)
• Correct operation of side brushes (they should rotate in opposite directions)

FAQ: Frequent questions about cleaning Xiaomi brushes