Owners of Xiaomi smart appliances often face situations where the device is starting to work less efficiently or making extraneous sounds, a sure sign that it’s time for maintenance. Robot vacuum cleaners, despite their autonomy, require regular human intervention to remove accumulated debris that interferes with the normal functioning of the machinery.
Ignoring cleaning can cause motor overheating, battery drains to run quickly, and even mechanical breakdowns. Hair, animal hair, and fine dust can wind onto moving parts in a matter of days. In this article, we will detail how to properly and safely remove contaminants from your assistant's key nodes.
Preparation for maintenance and basic security
Before any manipulations begin, you need to completely disconnect the device from the charging station. Electrical safety is a priority, since working with electronics requires eliminating the risk of short circuit.
You don't need complex tools, usually a cruciform screwdriver and a hard bristling brush. It's important to do the procedure on a flat, clean surface so that small details don't get lost. Some models have latches that require careful handling so that the plastic of the case doesn't break.
⚠️ Warning: Never attempt to disassemble the main engine unit or open the battery itself, this will result in a loss of warranty.
☑️ Preparation for cleaning a robot vacuum cleaner
Cleaning the main turbobrush from wound hair
The main enemy of any robotic cleaner is human hair and pet hair, and they wind up on the turbobrush shaft, creating a tight cocoon that blocks rotation. If you hear a crack or see an error on the display, the problem is probably right here. To extract the shaft, you need to unscrew the locking cover, located in the center of the work area.
Once the lid is removed, gently pull the shaft handle to remove it from the body. Use scissors or a special knife included in the delivery to cut the compressed layer of hair. Do this carefully, trying not to damage the bristles and plastic elements of the structure. Carefully remove all debris from the shaft axis, as even a small thread can cause a beat when rotating.
How often should I clean my brush?
The shaft can also accumulate dust and small villi inside the hole, blow this compartment or use a dry brush to remove contaminants, and clean the shaft regularly extends the life of the bearings and ensures that the dust from the carpets is absorbed properly.
Maintenance of side brush and wheel modules
The side brush is responsible for sweeping debris out of corners and along walls, so it's subjected to intense stress. Its axis often accumulates hair, which eventually turns into a hard lump. To remove this element, pull it up slightly; it is fixed on a slate joint without additional screws. Clean the bristles of dirt and remove the wound hair from the base.
Xiaomi's robot vacuum cleaner wheels are another critical node that needs attention: If the wheels get clogged with hair, the device will lose traction to the surface and start to tow or get stuck. Rotate each wheel manually, checking the ease of travel. If movement is difficult, use tweezers or a knife to remove debris from under the rubber tire.
⚠️ Note: Do not use aggressive chemical solvents to clean rubber wheels, as they can destroy the structure of the material and lead to slipping.
Pay special attention to the extra spring-loaded wheel in front of the body, which often collects dust and wool, stops rotating freely, carefully remove it from the nest, clean it from the dirt and set it back to the characteristic click. Free rotation of all the reference points ensures proper navigation and overcoming the thresholds.
Replacement and cleaning of HEPA filters
Xiaomi’s robot filtration system usually consists of a primary grid and a main grid. HEPA-It's the element that traps fine dust, allergens and bacteria. A clogged filter dramatically reduces the suction force, so the robot can drive dust around the room instead of collecting it. Take out the dust container and remove the filter element.
💡
For extension of service HEPA-filter carefully knock out the dust with light taps, but do not urinate it with water unless the instructions indicate otherwise.
Visually examine the filter material: if it is gray or blackened, its effectiveness is close to zero. HEPA-After dry cleaning, let the parts dry completely before putting them back into the dust collector.
| Type of pollution | Symptom | Solution |
| :--- | :--- | :--- |
| Dense layer of dust on the filter | Weak suction, noisy operation | Filter replacement or dry cleaning |
| Hair on a turbobrush | Engine error, crack | Mechanical knife removal |
| Dirt in sensors | Chaotic movement, falls | Soft cloth wiping |
| Clogged wheels | Stuck on the sills | Tweezers |
Navigation sensors and contact areas
The robot's intelligent movement depends on a lot of sensors around the perimeter of the body. The drop sensors (cliff sensors) and collision sensors must be perfectly clean. The dust that settles on them can knock navigation down, making the machine think there's a wall or a cliff ahead. Wipe all the glass and plastic windows of the sensors with a dry microfiber.
The most critical is the lower optical navigation sensor, which scans the floor surface; its contamination leads to the robot’s complete disorientation in space.
Also check the charging contact areas. There are metal plates on the bottom of the case and the docking station that transmit current. Oxidation or a layer of dirt on them prevents charging. Wipe the contacts with a cotton swab lightly moistened with alcohol, and let them dry.
💡
The purity of the sensors directly affects the intelligence of the robot: dirty sensors cause the algorithms to work incorrectly, leading to the skipping of entire rooms.
Caring for the dust collector and cyclone system
The dust container is the heart of the dirt collection system, and it often forms a "stone" of compressed dust that cannot be removed by a simple rash. Disassemble the container completely by disconnecting all the partitions. Wash the plastic parts thoroughly with water to remove plaque, but remember to dry them before assembly.
In cyclone models, it is important to clear the channels through which air travels to the filter. Use a long brush or brush to break through possible blockages in the tubes. If the air cannot circulate freely, the motor works with overload. Regular washing of the container prevents the appearance of unpleasant smell in the apartment.
Frequency of service and seasonal features
The maintenance schedule dictates the maintenance schedule, and during active molting or spring cleaning, the brush and filter cleaning frequency should be doubled, and prevention takes no more than 10-15 minutes, but saves money on future repairs.
Keep an eye on the rubber seals and bristles of the side brush. If the bristles have worn out and become soft, they stop cleaning out effectively and the element needs to be replaced. A scheduled replacement of consumables is usually required every 3-6 months depending on the intensity of use.