Smart tech owners often face the need for deep cleaning or minor repairs when standard procedures become insufficient.To disassemble a Xiaomi robot vacuum cleaner with wet cleaning function is a task that requires accuracy and understanding of the internal device, since the design of the device is quite dense.
Unlike conventional models, there are additional elements, such as a water compartment and pump, which complicates the dismantling process.
In this guide, we’ll take a detailed look at the steps of opening the case so you can safely replace the battery, clean up stuck debris in wheels, or perform sensor maintenance.
Workplace preparation and necessary tools
Before you start dismantling, you need to organize the space, and you need a spacious table with good lighting, so you don't lose small screws and damage fragile plumes.
The main tool will be a cross screwdriver (usually the size of a PH1 or PH2), as well as a plastic blade or mediator to open the latches. Metal tools are best avoided so as not to scratch the glossy plastic of the case or damage the internal components.
Also prepare the container for sorting screws, as different models Xiaomi Mi Robot Vacuum and Roborock can use screws of different lengths.
Be sure to turn off the device and disconnect it from the charging station before starting work.
⚠️ Note: Do not attempt to disassemble the device while it is charging or immediately after active operation, as some components may be hot.
For wet-cleaning models, it is critical to make sure the water tank is completely empty. Residual moisture can get onto the electronic board if it is not neatly opened, which will lead to a short circuit.
Dismantling the bottom panel and main nodes
The first stage of disassembly begins with exploring the bottom of the device, and this is where the main mechanical components that require maintenance are located most often.
You have to flip the robot vacuum cleaner over and find the screws that hold the bottom cover, and most models have a range of 4 to 6 screws.
After you unscrew the screws, don't pull the lid upwards, gently slap it with a plastic blade around the perimeter, freeing up the plastic latches.
- 🔧 Remove the side brush by pulling it up the center.
- 🔧 Remove the main turbobrush from the compartment by snapping the locks.
- 🔧 Unscrew the screws that hold the wheels if you plan to replace them.
- 🔧 Carefully disconnect the plume going to the height sensor (if it is fixed on the cover).
When you remove the bottom panel, you'll have access to the battery pack and the drive belts, and be careful, you'll get a lot of dust and wool inside, which you'll want to remove with a dry brush or a low-power vacuum cleaner.
It is important to note that in wet-cleaning models, an additional power cable for the pump often passes under the main panel.
If handled carelessly, this thin wire is easy to break, so all movements should be smooth and predictable.
If you are planning a deep cleaning, now is the time to check the condition of the HEPA filters and wash the dry garbage container.
Removal and replacement of the battery
Replacing the battery is one of the most common reasons why users decide to disassemble the Xiaomi Vacuum. Over time, the battery capacity drops, and the robot begins to work much less than the stated time.
The battery is usually a block of several elements enclosed in a plastic case, and is attached to the bottom with several screws.
To extract it, it is necessary to unscrew the fasteners and disconnect the power connector from the motherboard.
The connectors can sit tightly, so gently sway the connector from side to side, avoiding jerks behind the wires.
⚠️ Warning: When you turn off the battery, try not to touch the contacts on the board with your fingers so that static electricity does not damage the controller.
The new battery should have the same voltage and capacity characteristics as the original.
After installing a new block, make sure it sits tightly in the niche and doesn't hang around.
Fixing screws is mandatory, since vibration during operation can lead to the withdrawal of contacts and the cessation of charging.
☑️ Checklist before assembly
Modern models often use high-quality lithium-ion cells, but even these are subject to degradation after 2-3 years of active operation.
Proper disposal of the old battery is an important step, which should not be forgotten for the sake of ecology.
Maintenance of the wet cleaning system and pumps
Models with the function of wet cleaning are equipped with a special module that supplies water to the napkin.
If the robot has stopped moisturizing the cloth or has started leaving puddles, the problem often lies in the pump or water supply tubes.
To access the pump, it may be necessary to remove the upper cover of the case, which is a more complex procedure.
First, remove the top panel, gently snapping the latches in a circle.
And underneath, you'll see the main electronics unit and the tank, and the pump is usually located next to the water tank.
- 💧 Check silicone tubes for clogs or overburdens.
- 💧 Examine the nozzle of water output for the presence of scale or salt deposits.
- 💧 Make sure the pump connector is not oxidized.
Often the cause of malfunction is the crystallization of minerals from water, which clogs the channels.
You can clean them with a thin needle or blowing air.
Use only distilled water in the future to prevent scale from forming again inside the system.
Why is it important to use distilled water?
If the pump is humming but the water is not coming in, it is likely to be clogged or out of order electrically.
In such cases, the entire unit is required to be replaced, since repairing individual components of the pump is economically impractical.
Cleaning of wheel modules and side sensor
Wheels are the mechanical part that is most stressed.
Inside the wheel modules, hair and threads are often wound, which block rotation and cause the robot to make mistakes in navigation.
For deep cleaning of the wheel, you can gently tuck and pull out of the seat, having previously unscrewed the fixing screw.
After extraction, remove all the wound debris with tweezers.
Also check the condition of the rubber tire: if it is worn or lost traction, the robot will tow on the carpets.
| Component | Frequency of cleaning | Tool. | Sign of malfunction |
|---|---|---|---|
| Main brush | 1 time per week | Scissors, brush. | Noise, poor garbage capture |
| Wheels. | 1 time per month | Tweezers, toothpick. | The robot is spinning around. |
| Height sensor | 1 time 2 months | Dry napkin. | Falling from a height or making false mistakes |
| Water pump | As necessary | Needle, syringe. | Dry cloth at washing |
Special attention is required by the side distance sensor (rangefinder), located on the side end of the body.
If it is contaminated, the robot may constantly crash into obstacles or, conversely, think that he fell down the stairs.
Wipe the sensor window with a soft cloth without pile at each general cleaning.
Device assembly and initial start
The assembly process is carried out in reverse order.
The rule is not to put too much effort, and if the part doesn't fall into place, check for correct orientation and no forgotten screws.
Make sure all plumes are connected before clicking and are fixed with clamping slats if they are provided by the design.
When installing the top cover, first snap one side, then walk around the perimeter.
Twisting the screws cross-cross to ensure uniform fit of the panels and avoid the creaking of the case.
⚠️ Warning: After assembly, make sure that no screw is left over.A foreign object inside the housing can cause short circuit or jamming of the mechanisms.
Put the robot on the charging station and turn it on.
The first run may take longer than usual, as the system conducts self-diagnosis.
If the robot makes strange sounds or reports errors, it is possible that some sensor is connected incorrectly or closed.
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Before final assembly, wipe all plastic surfaces inside the case with an antistatic wipe – this will reduce the amount of dust deposited on electronics in the future.
Successful disassembly and assembly of Xiaomi Robot Vacuum allows not only to save on service, but also to significantly extend the life of the device.
Regular cleaning of internal components prevents overheating of the engine and wear of mechanical parts.
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Quality assembly depends on the correct sequence of actions and the absence of excess debris inside the case before closing the lid.