Regular maintenance of a smart assistant is the key to its long service and perfect cleaning. If you notice that the robot vacuum cleaner has begun to suck up dust worse, makes strange sounds or often stops, it's probably time for a general cleaning. Unlike conventional vacuum cleaners, it requires a delicate approach to electronics and moving machinery.
Many Xiaomi owners mistakenly believe that it is enough to empty the garbage container. However, to maintain high performance, you need to pay attention to filters, side brushes and, critically, navigation sensors. Ignoring these elements can lead to engine failure or failure in the construction of the map of the room.
In this article, we will take a closer look at the maintenance process, examine frequent maintenance errors, and answer questions that users often have, and ensure that the device can be properly hygienic for years without losing suction power.
Preparation for maintenance and security measures
Before any manipulations begin, you need to completely disconnect the device from the network and turn it off with a button on the case. This is a basic electrical safety rule that is often ignored, relying on software shutdown. Although modern models have protection, the risk of short circuits when moisture enters the contacts during wet cleaning of the nodes remains.
⚠️ Attention: It is strictly forbidden to immerse the main body of the robot in water or wash it under a strong pressure from a shower watering water.
Prepare your workspace: you will need a table with good lighting, dry wipes, a soft brush (you can use a paint or special brush for cleaning equipment), and possibly tweezers to remove hair stuck in axles. Do not use aggressive household chemicals, abrasive sponges or solvents, as they can damage the plastic case and rubber elements.
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Use only dry or slightly moist microfiber wipes to clean, and excess water is the main enemy of robot vacuum cleaner electronics.
It is recommended to clean completely every two weeks with pets and once a month in normal conditions, the frequency depends on the degree of contamination of the floors. If you have long-haired pets, it is worth checking the condition of the brushes weekly.
Cleaning the main dust container
The dust collector is the first element that needs attention. To extract it, you usually need to press the lock button on the top panel or pull a special handle, depending on the Xiaomi Vacuum model. Inside the container, you will see the main HEPA filter and a mesh filter.
Carefully remove the filter. It should not be washed with water unless the instructions for your particular model state otherwise. Most often, the filter is simply knocked out with a light tap on the trash can or blown with compressed air. Water washing is only allowed for spongy pre-cleaning elements, but you need to dry them for at least 24 hours.
- 🗑️ Empty the container after each cleaning so as not to overload the engine.
- 🌬️ Wipe the inner walls of the container with a dry cloth to remove fine dust.
- 🔍 Check the grid for major contaminants that can clog the channel.
If the HEPA filter is blackened or smells, it's better to replace it with a new one. You can't restore the carbon filters, and their efficiency drops to zero when you get a lot of pollution. Remember, a clogged filter creates resistance to the air, making the engine run to its limit.
Maintenance of main and side brushes
The main turbobrush is the heart of the cleaning system, and over time, it is wound with hair, wool and thread, which puts additional stress on the engine and can cause the belt to break or the gears to break. To extract the brush, turn the robot over and press the locks on both sides of the casing.
When you remove the brush, carefully examine it. Using scissors or a special knife (often included), gently cut the wound hair along the axis and remove it. Do not pull the hair by force so as not to damage the pile. After cleaning, check if the bearings rotate freely along the edges of the brush.
⚠️ Warning: Never oil the bearings of the main brush with oil or silicone. The lubricated surface will be adhesive to form an abrasive gruel that will quickly disable the mechanism.
Side brushes also require attention, they are attached to screws or latches, remove them and remove dirt from under the base, often this is where dust clumps accumulate, which interfere with balancing, and if the brush is deformed or the pile has worn, it needs to be replaced.
☑️ Brush cleaning
When you put the brush back in, make sure it's up before you click. Incorrect installation can cause vibration and noise during operation. Regular cleaning of these elements is a key factor in cleaning quality.
Care for wheels and side sensors
The wheels of the robot vacuum cleaner are in constant contact with the floor, collecting dust, wool and small debris. Polluted wheels can slip, causing the robot to lose orientation in space or get stuck on the doorsteps. Pay special attention to the axis of the wheel, where hair is often wound.
To clean, wipe the wheels with a wet wipe, scrolling them with your hand. If debris is stuck between the wheel and the body, carefully remove it with tweezers or toothpicks. Do not use metal objects so as not to scratch the plastic gears inside the suspension mechanism.
Side sensors (bumper sensors and cliffs sensors) are responsible for bypassing obstacles and preventing falling from a height (for example, from a ladder or a catwalk). Wipe them with a soft dry cloth. Dusty sensors can cause the robot to be "afraid" to go under the sofa or, conversely, fall down the stairs.
| Element | Frequency of cleaning | Tool. | The risk of neglect |
|---|---|---|---|
| The main brush | 1 time per week | Knife, brush. | Engine breakdown |
| HEPA filter | 1 time 2 weeks | Dry cleaning | Power drop |
| Sensors. | 1 time per month | Dry fabric | Falls, blows |
| Charging contacts | 1 time per month | Alcohol, fabric | Failure to charge |
Also check the front rotary wheel, which often gets clogged with hair, which stops rotating and starts to just drag on the floor, leaving scratches on the parquet or linoleum, which can be removed and washed with water, but before installation, be sure to completely dry.
Cleaning of navigation and lidar sensors
The most sensitive part of Xiaomi's robot is the navigation system. In lidar models (the jutting turret on top), dust settles on the protective glass of the laser rangefinder, which leads to mapping errors, chaotic movement, or refusal to return to base.
Rub the lidar window with a soft microfiber without the pile. The movements should be light, circular. Don't press hard to prevent the turret from rotating. If you hear the rumble or the hum as the lidar rotates, there may have been dust inside, and a more complex disassembly or replacement of the module is required.
What to do if the lidar does not rotate?
The bottom sensors, which are located around the perimeter of the bottom, also require cleanliness. They work on the principle of infrared radiation. A layer of dust can trick the robot into thinking that there is a cliff ahead when the floor is perfectly flat.
In visually navigable models (the camera on top), it's important to wipe the camera's lens. Fat spots from your fingers or dust can disorient computer vision algorithms. Use special wipes for optics.
Maintenance of the wet cleaning module (if any)
If your Xiaomi Vacuum Mop supports wet cleaning, water tank care is critical. After each use, drain the remaining water. Stagnant water is the perfect environment for bacteria to multiply and mold to appear, which will lead to an unpleasant smell on the next cleaning.
Once a month, it is recommended to wash the tank with clean water. If scale is formed (in regions with hard water), you can use a weak solution of citric acid, but then thoroughly rinse the tank. The filter at the outlet of the water (if it is in the tank design) also needs to be periodically changed or cleaned.
- 💧 Use only distilled or filtered water to prolong the life of the pump.
- 🚫 Do not add ordinary liquid soap or aggressive products to the tank - they foam and can pour electronics.
- 🧽 Wash the floor rag (clothcloth) after each cleaning and change as you wear it.
⚠️ Warning: Never leave the wet cleaning module with water inside the robot for long-term storage (more than a few years). 2-3 Water can evaporate and leave a saline plaque that will clog up the micro-holes of the water supply.
Check the rubber seals on the tank, and if they're dry or damaged, water can flow directly into the robot's electronic components, causing a short circuit, in which case the tank should be replaced.
Charging station contacts and storage
The final stage of maintenance is the charging station, and the metal contacts on the base and the robot's feedback (usually on the bottom or back) become oxidized or dusted over time, leading to poor contact, where the robot may recharge with jerks or not see the base at all.
Wipe the contacts with a dry cloth or cotton swab slightly soaked in alcohol. Make sure the base is clean: if the sensors on the base (if any) or the body itself are dusty, the robot may dock incorrectly.
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Clean charging station contacts ensure stable charging and prevent overheating at the connection point, prolonging the battery life.
If you plan to not use the robot for a long time, store it in a dry place at room temperature. It is recommended to keep the battery at 50-70%. Do not leave the robot completely discharged, as this can lead to a deep discharge of lithium-ion batteries and their inability to recover.