Disassembly of the nozzle of the vacuum cleaner Xiaomi: from the brush to the turbo-set-top box

Xiaomi vacuum cleaner nozzles are not just accessories, but high-tech modules that require regular maintenance. Over time, dust, hair and small debris accumulate inside the brushes, turbo nozzles and corner adapters, causing suction power to drop, engine overheating and even breakdowns. 10-30 minutes, but without design knowledge, it is easy to damage plastic latches or lose small parts.

In this article, we will discuss in detail the process of disassembling all types of nozzles from Xiaomi Mi Robot Vacuum, Dreame and Viomi (including models). 2023-2026 We will show you hidden mounts that the manufacturer does not advertise, and give recommendations for cleaning and lubrication. We will pay special attention to turbo brushes with motors - their dismantling requires accuracy due to the risk of damage to electrical contacts.

If your vacuum cleaner starts to make noise, pick up garbage poorly, or shut down during cleaning, 80 percent of the time, the problem is the nozzle, and our instructions will help you save money on the service center and return the machines to factory productivity.

1.Preparation: security tools and measures

Before you start disassembling, make sure you have everything you need, and without the right tools, you run the risk of breaking plastic locks or scratching the body, and here's the minimum set:

• ✅ Plastic mediator (or guitar) - to disconnect the latches without scratches.
• ✅ Cross screwdriver (usually) PH0 or PH1) — turbo-fisher.
• ✅ Tweezers – to extract small details (springs, washers).
• ✅ Silicone lubricant (e.g, WD-40 Specialist - for brush shaft bearings.
• ✅ Soft brush (dental or brush) - for cleaning internal cavities.
• ✅ Hair dryer (optional) – if you need to dry the parts after wet cleaning.

Important: Xiaomi often uses hidden screws under stickers or stubs. e.g. in Dreame turbo nozzle V12 One of the screws is hidden under a rubber seal, and if you don't notice it, you can break the body when you disassemble it.

⚠️ Warning: Never use metal screwdrivers to separate plastic parts, they leave burrs that can injure your hands or tear the dust collector. If there is no mediator, an old bank card will do.

Also prepare your workspace: lay light cloth or paper so you don’t lose small parts (such as springs from Viomi brushes). V3). If you disassemble the nozzle with the motor (turbo brush), disconnect the vacuum cleaner from the network 10 minutes before the start of work - this will eliminate the risk of residual voltage in the contacts.

2. disassembly of the main brush (for vacuum cleaner and robot vacuum cleaner)

The main brush (also called “roller” or “roller”) is installed in most models of Xiaomi Mi Robot Vacuum, Dreame Bot and Viomi. SE. Its design is simple, but inside hides bearings and belts that require periodic cleaning.

Step-by-step:

1. Take the brush off the vacuum cleaner. Press the locks on the sides (usually marked with arrows or dots). Z10 Pro needs to additionally turn the brush counterclockwise.
2. Remove the hair and the debris. Use scissors or tweezers to cut the hair from the shaft. Don't pull it, so you can deform the bristles.
3. Remove the side covers. They're attached to the latches. Put the mediator in the gap between the lid and the body and gently tuck it in. Start on the side where there are no gears (usually on the left).
4. Remove the bristles shaft. Once the lids are removed, the shaft is easily removed. Pay attention to the bearings, if they jam, the brush will rotate in jerks.
5. Clean the belt and gears. In motor-driven models (such as the Xiaomi Mi Robot Vacuum-Mop 2 Pro), check the condition of the belt. If it is stretched or has cracks, you need to replace it.

The body of the brush often accumulates dust, which mixes with the condensate and forms a sticky mass. Use cotton swabs soaked in alcohol to clean, but do not pour the liquid directly - this can damage the plastic.

Remove all hair from the shaft and bristles|Check the bearings for backlashes.|Lubricate the shaft with silicone lubrication|Make sure the belt is not twisted.|Wipe your contacts (if any) with alcohol-->

Disassembly of the turbo nozzle (with motor)

Turbo nozzles (for example, for Xiaomi Mi Handheld Vacuum or Dreame) V12) It's more difficult to disassemble because of the electric motor and the cooling system, and their main enemy is the dust that enters the engine vents, which leads to overheating.

Disassembly algorithm:

• 🔧 Remove the top cover. It's attached to the top. 2-4 screws (in Dreame) T30 There are also latches, and you have to press them with a mediator.
• 🔌 Disconnect the motor contacts. Gently unclick the power connector. Don't pull the wires, they're often soldered to the board!
• 🌀 Remove the engine block. It's attached to the engine block. 2-3 In some models (for example, Viomi). V18) The motor is additionally fixed with a plastic bracket.
• 🧹 Clean the fan blades. They're on the shaft of the motor. The dust here is particularly active and can block rotation.

Pay special attention to the coal brushes of the engine (if you have them in your model), their wear is a common cause of power loss. In Xiaomi nozzles, the brushes are usually hidden under a plastic cover on the end of the engine, if they are less than 3 mm long, you need to replace.

⚠️ Attention: In Dreame turbo nozzles V11 And it's a newer brushless motor, and you can't disassemble it yourself, just by cleaning the externals and changing the filters!

After cleaning, check the bearings of the shaft. If you hear crunch or backlash, you need to lubricate or replace them. Use silicone lubricant (not litol or solidol, they collect dust) to lubricate.

Disassembly of corner and slot nozzles

Corner and slot nozzles (for example, for cleaning boards or furniture seams) seem simple, but they also require maintenance. Their main problem is clogged channels that reduce suction. They are easiest to disassemble, but there are nuances.

Corner nozzle:

1. Turn the nozzle with the back side to you. It's usually two halves held together by latches.
2. Insert the mediator into a perimeter slot and gently separate the parts. In Xiaomi Mi Vacuum models, you may need to turn one half counterclockwise.
3. Clean the internal duct of dust. Use a brush or compressed air (such as a can of keyboard cleaning).

Slit nozzle:

• 🔍 It's usually made up of a plastic tube and a removable tip, and the tip is removed by turning or pressing the lock.
• 🧼 Dust often accumulates inside the tube, which forms a cork, blow it or rinse it with warm water (if the material allows).
• ⚠️ Do not use sharp objects for cleaning – they can scratch the inner walls, which will worsen the aerodynamics.

In some models (e.g. Dreame) H12) The slit nozzle is adjustable, the adjustment mechanism is a weak point, because it gets dust. WD-40 (thin-layer).

5 Cleaning and Lubrication: What Can and Cannot Be Done

After disassembling the nozzle, you need to not only clean it, but also lubricate it properly, and mistakes at this stage can lead to even more serious breakdowns.

• 🧴 Lubricant: Use only silicone lubricant or special compounds for household appliances. Lithol, solidol or machine oil attract dust and thicken over time.
• 🚿 Wet cleaning: Washing parts (such as the brush case) can be washed with warm water and soap, but do not immerse motor units and electronics in water.
• 🔥 Drying: After wet cleaning, dry the parts for at least 2 hours at room temperature.
• 🧲 Magnets: In some nozzles (for example, Viomi) V2) You have magnetic fixers. Don't bring metal objects close to them, it can break the polarity.

Critically, Xiaomi and Dreame's turbo nozzles use a sealed engine compartment after 2020, which cannot be washed with water - only dry cleaning with compressed air or a soft brush!

For lubricating the bearings of the shaft, a brush is enough 1-2 Put it on the shaft, not on the bearing itself, to avoid overabundance. After lubrication, rotate the shaft by hand, it should rotate smoothly, without jamming.

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If the brush is hard to rotate after assembly, check if the grease has hit the belt. Rub it with alcohol and let it dry for 10 minutes.

6. Common mistakes and how to avoid them

Even experienced users sometimes make mistakes when disassembling Xiaomi nozzles, and here are the most common ones and ways to prevent them:

• 🔩 Loss of screws. In turbo nozzles, screws are often of different lengths. Take a picture of their location before disassembly or fold them into separate containers.
• 🧲 Latches damage. Plastic locks break if you bend them in the wrong direction. Move the mediator parallel to the seam, not perpendicularly.
• 🔌 The wires are often soldered to the board in motor nozzles, so don't pull them, you better gently put the screwdriver on the connector.
• 🌀 If the belt is twisted, the brush will rotate backwards or slip. Check its position before final assembly.

Another common problem is incomplete cleaning, and many users only remove visible debris, forgetting about the dust inside the engine compartment or bearings. Use a flashlight to look at all corners of the nozzle.

⚠️ Attention: In the Dreame nozzles T20 Xiaomi Mi Vacuum 2 There's a Hall sensor that controls how the brush rotates. If the vacuum cleaner produces a "Brush Error" error after assembly, check the position of the sensor, it should be at a distance. 1-2 mm magnet on the shaft.

If the nozzle works worse after assembly than before disassembly, the probable reasons are:

1. The belt or bristles are incorrectly installed.
2. One of the motor contacts is damaged.
3. There was dirt or too much lubrication in the bearings.
4. No slits are recorded (air is sucked through the slits).

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If the suction power has not recovered after cleaning, check the condition of the vacuum cleaner and hose filters. Often the problem lies not in the nozzle, but in the clogged duct.

7 When the disassembly won't help: Signs of serious breakdown

Not all problems with nozzles are solved by cleaning, there are signs that indicate a malfunction of electronics or mechanics that require professional repair:

• 🔥 The motor warms to a hot state (you can not hold your hand) - possible interturn breakdown of the winding.
• 🔊 Extraneous sounds (screaming, screeching) - wear of bearings or deformation of the shaft.
• ⚡ Sparkling in the field of coal brushes - they need to be replaced or repaired by the collector.
• 🛑 The nozzle does not turn on, although the contacts are intact - the control board is faulty or a break in the cable.

In such cases, disassembly can only make the problem worse, such as if the Dreame motor was a motor. V11 spark, further operation will lead to burnout of the windings and repair will be impossible. it is better to immediately contact the Xiaomi service center or order a replacement of the engine unit (if the warranty has expired).

The cost of a new motor for a turbo nozzle is 1500-3000 RUB (depending on the model), and repairs in the service will cost 800-1500 If the vacuum cleaner is older 5 Sometimes it is cheaper to buy a new one than to repair the old one.

FAQ: Frequent questions about disassembling Xiaomi nozzles