Xiaomi’s modern robot vacuum cleaners are no longer just dry dust collection devices. Wet cleaning, or mop, has become the de facto standard for keeping the house clean without undue effort on the part of the owner. However, many users face difficulties in first activating this mode, as the process requires proper physical preparation of the device and setting up software algorithms.
To get started successfully, you need to understand the difference between models equipped with a vibration platform and those where water is supplied by gravity. In any case, the key element is the correct operation of the sensors and the presence of an up-to-date map of the room in the memory of the gadget. Errors at the initial stage can lead to uneven distribution of water or even damage to flooring.
In this guide, we will take a detailed look at all the preparation steps, from installing the tank to fine-tuning the zoning in the Mi Home app.You will learn how to make a device ignore carpets while washing floors and why it is important to use only distilled water to extend the life of the pump.
Preparation of equipment and installation of the module
The first step is to physically install the wet cleaning module, which, unlike a dry dust collector, requires careful handling of electronics and mechanical connections, and make sure that the device is completely turned off or is in a dock before manipulation begins.
Remove the standard dust container and install a combined tank or separate water module, depending on your Xiaomi Mi Robot Vacuum Mop model. When installed, you hear a characteristic click confirming that the contacts have joined and the locks have latched. If the module wobbles, remove it and try to reset it, keeping the direction.
⚠️ Warning: Never fill the module with water before it is installed in the robot body.
After the physical installation, you have to prepare a microfiber napkin, which is attached to the bottom of the module with Velcros, and it's important that the fabric is tightened evenly, without folds, otherwise it can create additional resistance when moving.
☑️ Pre-launch checks
Setting up water supply levels in the application
The humidification intensity is controlled exclusively through software. Once you connect the robot to Wi-Fi and add it to the Mi Home app, you need to go to the settings of a particular device. The interface may vary slightly depending on the regional version of the firmware.
In the main control menu, find the icon for cleaning modes or for water settings specifically, which usually offers three or four levels: low, medium, high and sometimes smart, depending on the type of flooring and the degree of contamination.
A minimum level is sufficient to keep laminate or linoleum clean every day, but if there are dried spots on the floor, you can increase the water supply, but be careful with wooden coatings that do not have moisture-protective varnish.
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Use distilled or well-filtered water. Tap water contains calcium salts that clog the pump's micro-holes over time and leave white plaque on the floor after drying out.
Creation of virtual walls and forbidden zones
One of the most important functions for good wet cleaning is zoning, and the robot has to know where to wet the cloth and where to not go, and this is especially true for homes with carpets that can't be wet, or places where there are bowls of animals.
In the Mi Home app, go to map editing mode, where you will find tools for drawing virtual walls and no-go zones, and it is recommended to draw a "no-go zone" (a square with a crossed-out circle) on top of all carpets in the apartment.
When a Xiaomi robot vacuum cleaner sees a mark on a map, it goes around the area even if there are no physical obstacles, which prevents the pile from getting wet and possible problems with carpet drying later, and you can also create virtual walls along the sills or steps if the height sensors are not working properly.
| Type of zone | Robot behavior | Icon in the appendix |
|---|---|---|
| Virtual wall | Not crossing the line. | A solid line. |
| No-go zone (square) | Ignoring the area inside | Square with a cross |
| No cleaning area (circle) | He doesn't go round. | Cross-out circle |
Working with carpets and different types of coatings
Mixed flooring owners should be aware of the behavior of carpet sensors. Most modern Xiaomi models are equipped with sensors that automatically increase the suction power when you hit a woolly surface.
Some advanced models can automatically lift a water module or shut off the fluid supply when a carpet is detected. If your model doesn't support this function hardwarely, using virtual zones becomes a requirement, and ignoring this rule will cause the robot to drag a wet cloth across the carpet.
For tile and porcelain, you can use the maximum water supply level, these materials are resistant to moisture and dry quickly. For low-end parquet or laminate, it is better to pre-test one passage with minimal humidity in an inconspicuous corner of the room.
⚠️ Warning: If the robot is stuck on a long-pile carpet during wet cleaning, remove it immediately.
Solving Typical Problems and Errors
During operation, users may encounter a situation where the robot reports an error or simply refuses to start the wash mode. Often the problem lies in a software failure or incorrect sequence of actions. First of all, check whether the water tank is installed correctly.
If the app says "Install a water tank" even though it's standing still, wipe the contacts with dry soft cloth. Oxidation or dust may disrupt signal transmission. Also make sure there's water in the tank - some models won't start the pump if the level sensor shows a void.
Another common problem is that the robot forgets a map or creates a new one every time it starts, in which case wet cleaning can run chaoticly, try to save the current map in the settings and prevent the device from creating new maps without your knowledge.
What to do if a robot smears dirt?
System maintenance and maintenance
Regular maintenance is critical to the long life of the device. After each wet cleaning, it is recommended to remove the module, drain the remaining water and wipe the insides with a dry wipe. Stagnant water is the ideal environment for bacteria to multiply and produce unpleasant odors.
Microfiber wipes should be washed after 2-3 uses. Machine washing is permissible at a temperature of no more than 40 degrees, the use of air conditioners for underwear is prohibited, as they reduce the absorbent properties of the fabric.
Pump prevention once a month, and you can start a water supply mode without a cloth (over the sink or bucket) to flush the system from possible deposits, which is especially true if you use tap water, even filtered water.
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Regular drying of the tank and washing the napkin prevent the appearance of mold and unpleasant odors that can spread throughout the apartment during the work of the robot.