Modern robot vacuum cleaners from Xiaomi and sub-brands like Dreame or Roborock are famous for their reliability, but even the most advanced technology requires maintenance. Over time, dust, pet hair and small debris accumulate in hard-to-reach places that cannot be removed by standard cleaning of the container. It is at such moments that the owner faces the question: how to disassemble a Xiaomi vacuum cleaner safely so as not to damage fragile plastic latches or plumes?
Complete disassembly of the case is usually required not only for deep cleaning, but also for battery replacement, wheelbase repair or sensor recovery. It is important to understand that opening the device can lead to loss of warranty, so you should start the procedure only if the warranty period has already expired or the breakdown is mechanical in nature, not covered by the service.
The dismantling process requires precision and minimal tooling, and often enough a cross screwdriver and plastic blade to avoid scratching glossy surfaces, and below we will go into detail the preparation steps, the removal of the main components and the features of working with electronics, so that you can return your assistant to factory efficiency.
⚠️ Warning: Before starting any disassembly work, be sure to disconnect the device from the charging station and turn off the power switch on the bottom panel, if it is provided by the design of your model.
Tools and workplace preparation required
The cleaner starts well before you pick up the screwdriver. The first thing you need to do is to provide a clean, well-lit workplace. The best option is to have a spacious table with a flat surface, covered with soft cloth or an antistatic mat, which will prevent the loss of small screws and protect the device body from accidental scratches during operation.
You need a specific but affordable set of tools to work with Xiaomi equipment. Most of the time, a standard cross screwdriver is used, but some models may have hidden-head screws or special latches. It is not superfluous to prepare a magnetic tray or several small containers for sorting the fasteners, since screws of different lengths can be used in different units.
- 🛠️ Cross screwdriver (usually size) PH1 or PH2) — main tool for twisting screws on the bottom panel.
- 🧤 Plastic blade or mediator - necessary for a careful opening of the body without damaging the latches.
- 🧹 Tweezers and soft brush – useful for extracting hair and dust from hard-to-reach places after removing the covers.
- 📱 Smartphone with camera – take a photo at each stage, so as not to forget the location of plumes and screws during assembly.
So, you have to focus on organizing space. You have to put tools in order of how you use them. If you're the first time you're facing a task like this, take your time. The complex machinery of robot vacuum cleaners requires careful attention. Remember, power isn't the main assistant, so if something doesn't open, you probably missed the hidden screw or didn't fully snap the lock.
☑️ Preparation for disassembly
Primary dismantling: removable modules and bottom panel
The first step is to start disassembling with external, easily accessible elements, HEPA-These components don't require tools, but the presence of tools inside the body can interfere with further work. Then turn the device upside down to access the bottom panel where the main fasteners are located.
On the bottom of the case, you'll find a series of screws holding the protective platform. In some models, such as the Xiaomi Vacuum Mop 2 Pro or Dreame D9, the screws can be hidden under rubber plugs or stickers. Carefully examine the surface: if you see rubber legs, try to gently tamper with their edge. Often, it is under them that additional fasteners are hidden.
After you unscrew all the visible screws, don't rush to pull the lid abruptly. The plastic latches around the perimeter of the body are quite tight. Use a plastic blade to walk along the junction between the top and bottom of the body, gradually snapping the locks. Move around, evenly freeing the perimeter so that the plastic doesn't break in one place.
⚠️ Warning: When removing the bottom panel, be extremely careful with wires going to the side brush or floor sensors if attached to the removable part.A sharp jerk can break the plume.
When the bottom panel is removed, you will have access to the main nodes: the turbine engine, the wheels and the battery, and at this point it is important not to touch the electronic contacts with your fingers and avoid static electricity. If your goal is simply to clean the wheels, then further deep disassembly may not be necessary.
Chassis maintenance: wheels and side brush
The wheels of a robot vacuum cleaner are one of the main magnets for hair, thread and wool. The debris that is wound blocks rotation, causing the device to make a mistake or move randomly around the room. To clean the main wheel, it must be removed from the body, usually fixed in the landing place with a plastic mustache or screws.
Removing the wheel often requires pressing the locks and pulling the axle at the same time. In modular models, the wheel can be removed along with the entire suspension unit. Inside the mechanism, you will see a bearing and axle that need to be thoroughly cleaned of dirt. Use tweezers to remove tightly compressed dust lumps.
- 🌀 Remove the rubber tire from the metal disk - it is under it that the bulk of the dirt most often accumulates.
- 🧼 Wash the metal parts with warm water and soap, but be sure to dry them before installing them back.
- 🔍 Check out the wheel-stuck sensor (if any) – this is a small lever that should be free to walk up and down.
The side brush also requires attention. Its rotational mechanism is often clogged with hair that winds up on the engine shaft. To get to it, you need to remove the plastic brush casing. In some Xiaomi and Roborock models, the brush shaft is part of a removable module, which greatly simplifies maintenance. Clean the shaft and lubricate the axis with a silicone lubricant droplet to improve rotation.
Why are the wheels creaking?
Disassembly of the turbobrush and the main engine
The turbobrush (main roller) is the heart of the cleaning system. Unlike the side brush, it is driven by a separate engine and transmits torque through a belt or direct transmission. Access to this assembly often requires removing the top cover of the housing, which is more difficult than working with the bottom panel.
To remove the top, you need to unscrew the screws located under the dust collector and sometimes under the decorative cover of the laser rangefinder (LDS). Be extremely careful with the LDS module: this is a high-precision device, and damage to its plume or calibration disorder will cause the robot to stop building a map of the room.
When you remove the top cover, you'll see the turbine's main fan, which is mounted on multiple screws and connected to the board with a flexible plume, and you need to unplug the plume carefully by flexing the connector upwards rather than pulling the wires, and you can disassemble the turbine itself by removing the snail cover to clear the blades of the sticky dust that reduces thrust.
Inside the body is also a side brush motor and a rag lifting mechanism (in wet-cleaning models) that rarely fails, but requires periodic checks for foreign objects. If you hear a foreign hum when you're working, the problem is often the bearings of these engines.
💡
Use isopropyl alcohol to clean the plastic parts of the turbine - it perfectly dissolves fatty plaque and quickly evaporates, leaving no traces.
Electronics, sensors and battery
The robot vacuum cleaner's internal electronics are represented by the main motherboard, wheelboards and sensors. Battery replacement is the most common reason for deep disassembly. The battery in Xiaomi devices is usually located at the bottom and connected to the board via a fuse connector.
When working with the battery, it is important to be polar and not close contacts. Old batteries can swell, so you need to remove them with extreme caution, without pressing on the battery housing. After replacing the new battery, the device may require calibration through the application.
| Component | Location. | Signs of pollution/breakdown | Cleaning method |
|---|---|---|---|
| Cliffs sensor (cliffs) | Bottom panel, perimeter. | Robot falls down stairs or stands still | Wash with a dry napkin. |
| Laser rangefinder (LDS) | Upper tower module | Robot doesn't build a map, crashes into it | Blow in compressed air, do not disassemble |
| Dust collector sensor | Inside the case under the container | The "install the dust collector" error | Drain the IR port with alcohol |
| Contact charging platforms | Bottom of the hull (back) | The robot is not charging. | Clean with a pasticle or alcohol |
And you'll pay special attention to the cliff sensor, which is an IR sensor that keeps the robot from falling down the stairs. If it's contaminated, the robot will think it's above the abyss and refuse to go forward. Rub it with a soft cloth without a pile. Also check the charging contacts on the case, because oxidation often leads to autonomy problems.
⚠️ Warning: Never use wet fabric to wipe the electronic board.Any moisture that gets on the contacts can cause a short circuit when turned on.
Assembly of the device and verification of functionality
The assembly is done in reverse order. This is a golden rule of repair that can't be broken. Make sure all plumes are snapped to the characteristic clicks and the screws are twisted with moderate force. The tugging of screws in the plastic case can lead to cracks or ripped threads, which will make the structure leaky.
Before you finally turn all the screws and close the case, do a primary test. Connect the battery, turn on the switch, start the device. Check if the wheels are spinning, if the turbine is working and if there are any extraneous sounds. If everything is working properly, you can complete the assembly.
- ✅ Make sure all wires are stacked in their channels and don't fall under moving parts.
- ✅ Check the free movement of all mechanical components (wheels, brushes) with your hand before turning on.
- ✅ Install the dust collector and filters only after the complete assembly of the case.
Once fully assembled, start cleaning in Maximum mode and listen to the engine. If there is no noise, and the robot confidently builds a map and cleans up debris, then you have successfully completed the task. Regular deep cleaning extends the life of the device for several years.
💡
The main secret of successful assembly is to take your time and check the operability of each node before closing the case, so that you do not have to disassemble everything again because of one forgotten plume.