Wet cleaning on the robot vacuum cleaner Xiaomi: how to turn on and configure

Xiaomi vacuum cleaners are no longer just smart brooms β€” modern models are equipped with a wet cleaning function that allows not only collecting dust, but also washing floors with minimal user participation. However, many owners face difficulties when first turning on this mode: somewhere there are not enough accessories, somewhere the application does not offer the right option, and sometimes the robot simply ignores the command. In this article, we will analyze all ways to activate wet cleaning on different models Xiaomi, Viomi and Dreame, and also tell you how to avoid typical errors that lead to leaks or incorrect work.

It is important to understand that the function of wet cleaning depends not only on the firmware of the robot, but also on the configuration: some models (for example, Xiaomi Mi Robot Vacuum-Mop). 2 Lite comes with a water tank out of the box and for others (like Xiaomi Mi Robot Vacuum) 1S) We'll have to buy the accessories separately, and we'll go into three key things: preparing the robot for cleaning, setting up the Mi app. Home/Dreamehome If your vacuum cleaner refuses to wash the floors, you can use it. 90% The problem is in one of these areas.

Before you get to the instructions, check if your model supports wet cleaning at all. For example, budget versions like the Xiaomi Mi Robot Vacuum Cleaner (first generation) do not have a physical water spray system.

πŸ“Š What model of Xiaomi robot vacuum cleaner you use?
Xiaomi Mi Robot Vacuum-Mop 2 Pro
Xiaomi Mi Robot Vacuum 1S
Viomi V3
Dreame D9
Another model
I don't know.

1. Model compatibility: which Xiaomi robots support wet cleaning

Not all Xiaomi robot vacuum cleaners can wash floors. Wet cleaning has been introduced relatively recently and is available mainly in mid-range and premium models. Below is a table with current devices (2026) that support this mode out of the box or after the upgrade with accessories.

ModelWet cleaning in the basic configurationNeeds to buy moreVolume of water tank (ml)
Xiaomi Mi Robot Vacuum-Mop 2 ProYes.β€”200
Xiaomi Mi Robot Vacuum-Mop 2 LiteYes.β€”180
Viomi V3Yes.β€”250
Dreame D9Yes.β€”270
Xiaomi Mi Robot Vacuum 1SNo.Wet cleaning module (article) ZNMS01JM)160 (when purchasing a module)

If your model is not on the list, check the specifications on the official Xiaomi website or in the documentation. E10 It doesn't support wet cleaning even with additional accessories -- it's a purely dry model. Also note the firmware version: older versions of the software may have hidden the option (update solves the problem 80% of the time).

⚠️ Note: Some Chinese versions of robots (e.g., Mi China) may have a different set of features than global models.

2. Preparing the robot for wet cleaning: what to do before the first launch

Before you start washing, you need to physically prepare the robot and the room, and neglecting this stage often leads to leaks, flooring damage, or inefficient cleaning.

Install a water tank (if not included)

Pour clean water (distilled or filtered)

Attach a floorwashing napkin

Check the tightness of the tank joints

Remove carpets and wires from the floor-->

Let's take a closer look at each item:

  • πŸ’§ Water tank: Make sure the water tank is tightly attached to the robot compartment. On most models, it is installed instead of or next to the dust collector. For example, in Xiaomi Mi Robot Vacuum-Mop 2 Pro, the tank is attached with magnets β€” if it wobbles, water will spill.
  • 🧼 Water quality: Use only distilled or filtered water. Tap water with impurities can clog the sprayers and cause the pump to break. In some models (e.g. Viomi) V3) there is a sensor of water hardness - if the norm is exceeded, the robot will refuse to work.
  • 🧹 Napkin: It should be microfiber and fit snugly to the base. If the napkin is torn or poorly secured, the robot will leave a divorce. For models with electronic pressure control (for example, Dreame). D9) Use only original wipes – third-party sensors may not work.

Also, pay attention to the type of flooring. Wet cleaning is contraindicated for:

  • 🧡 Long-pile carpets (robot can get stuck or spoil the coating).
  • πŸͺ΅ parquet without protective lacquer layer (water penetrates into joints).
  • ⚑ Electric warm floors (risk of short circuit in leaks).

πŸ’‘

If your model has a function Automodity (for example, in Viomi). V3), Before the first cleaning, start calibration: put the robot on a flat surface and select Settings in the application β†’ Calibration of the napkin, which will help to avoid excessive moisturization of the floor.

3. Enabling wet cleaning through the Mi app Home/Dreamehome

The main way to control the robot is through the official application. The interface may differ depending on the model, but the overall algorithm is the same. Consider the step-by-step instruction for Mi Home (for Dreamehome, the actions are similar).

Step 1. Open the Mi Home app and select your robot vacuum cleaner from the list of devices. If the device is not connected, add it via Add Device (+) β†’ Household robot.

Step 2. Go to Cleanup (usually the broom icon in the bottom menu) and you'll see three main modes here:

  • πŸŒ€ Just sweeping - dry cleaning.
  • πŸ’¦ Sweep and wash - combined mode (vacuum cleaner) + wet-cleaning).
  • 🧽 Wash only – wet cleaning only (not available on all models).

Step 3: Choose to sweep and wash or wash only, and then you will see an additional menu with settings:

  • πŸ“‰ Water level: Adjusts the intensity of spraying (usually 3 levels: Low, Medium, High). Low for laminate, medium for tile.
  • πŸ”„ Number of passes: How many times will the robot walk in one zone (optimum - 2 passes).
  • 🚫 Avoidance zones: You can note carpets or areas where wet cleaning is not necessary.

If the option to sweep and wash is not on the menu, the reasons may be as follows:

  • πŸ”Œ Water tank not installed or recognized (check contacts).
  • πŸ“± Older version of the app (update Mi Home to Google) Play/App Store).
  • πŸ€– The robot is not tied to your account (reconnect the device).
What to do if the application does not have the option of wet cleaning?
If your model supports the function but the option doesn’t show, try: 1. Reset the robot settings to factory settings (Settings) β†’ Reset). 2. Reinstall the Mi Home app and re-tether the device. 3. Update the robot firmware manually through Settings β†’ 4. Check your account region: some features are hidden for regions other than China or Europe (you can change the region in your Mi Account profile).

4.Manual control: how to enable wet cleaning without a smartphone

You don't always have a phone on hand, and you have to wash the floors right here and now. Most of Xiaomi's robots allow you to activate wet cleaning from the physical control panel on the case. Consider the process with the Xiaomi Mi Robot Vacuum-Mop 2 Pro:

Step 1 Make sure the water tank is filled with water and the napkin is secured. Press the power button ⏻, turn on the robot.

Step 2. Press the Cleanup button briefly (usually with a broomstick icon) and the robot will beep and start preparing.

Step 3. Hold the Clean Up button for 3 seconds until you hear a double signal. πŸ’§ β€” This means that the Sweep and Wash mode is activated.

For models without a display (for example, Xiaomi Mi Robot Vacuum) 1S with a wet cleaning module, the combination may differ:

  • Press. ⏻ insert.
  • Hold it at the same time Home (🏠) and Cleaning (🧹) 5 seconds.
  • After the beep, the robot will begin cleaning with water spraying.

⚠️ Note: On some models (e.g. Dreame) D9) manually enabling wet cleaning is blocked if the app has a ban on this mode. check the settings in Mi Home before using physical buttons.

5. Typical mistakes and their solution: why the robot does not wash the floor

Even after the right setup, the robot can ignore the command to wet cleaning.-5 The reasons why this happens and how to eliminate them.

Problem.Possible causeDecision
The robot can drive, but it doesn't spray water.A clogged sprayer or a faulty pumpWash the sprayers under running water, check the connection of the tubes
There is no option for wet cleaning in the appOutdated firmware or incompatible moduleUpdate the robot software, check the compatibility of accessories
Robot washes floors but leaves puddlesIncorrect water level or damaged wipeReduce the intensity of spraying, replace the napkin
Cleaning interrupted in 5 minutesLow battery charge or water sensor errorCharge the robot to 100%, check the water level in the tank
Robot avoids wet laminate cleaningActivated function of gender protection in settingsTurn off the option of Laminate Protection in the application

If none of the methods did not help, perform a diagnosis through the application:

  1. Open Mi Home and go to Settings β†’ Diagnostics.
  2. Select the Wet Cleaning System Test.
  3. Follow the instructions on the screen (the robot will check the pump, sensors and sprayers).

In 10 percent of cases, the problem is mechanical damage, like a cracked tube or a faulty valve. If the robot is warranty, contact the service center. For self-repair, you will need to disassemble the body and check the integrity of the parts (instructions for disassembly are available on thematic forums, for example, 4PDA).

πŸ’‘

If the robot stopped spraying water after falling or hitting, don't try to repair it yourself, because there's a high chance of damage to the electronics, and in such cases, only a service center can guarantee safe repair.

6. Optimizing wet cleaning: tips for the perfect result

To make the robot wash the floors efficiently, it's not enough just to turn on the function - you need to adjust the parameters correctly and prepare the room.

  • πŸ•’ Cleaning time: Start wet cleaning after dry, so the robot will first collect large debris that can clog a napkin.
  • 🧴 Cleaning products: Do not use common household chemicals (such as Mr. Proper) – they foam and can damage the pump. For Xiaomi robots, special concentrates are suitable (for example, Xiaomi Mi Robot Detergent).
  • πŸ”‹ Charging: Wet cleaning consumes the battery faster than dry cleaning. Make sure the robot is charged at least 80% before starting work.
  • πŸ—ΊοΈ Room map: Break up the room into zones in the app and set different water levels for each. For example, in the kitchen you can increase the intensity, and in the bedroom you can reduce the intensity.

For models with a self-cleaning wipe system (e.g. Dreame) D9) It is important to wash the tank regularly and clean the brushes:

  1. Remove the water tank and drain the remaining water.
  2. Wash it with warm water (without detergents!).
  3. Dry in the air (do not use a hair dryer or battery!).
  4. Clean the napkin from hair and pile (you can wash in a typewriter at 30)Β°C).

πŸ’‘

If the robot leaves a divorce on dark floors, add 1-2 drops of vinegar (200 ml) to the water, which will help remove the lime plaque and give shine to the tile. But don't exceed the dosage - vinegar eats away at rubber seals in large quantities!

7. Model comparison: which is the best washing floors

If you’re just choosing a wet cleaning robot, it’s worth comparing the key models for washing efficiency, and below is a rating based on user test scores and feedback (data for 2026).

ModelWash quality (out of 10)Area per 1 cycle (m2)Features
Dreame D99.5120Self-cleaning of the wipe, pressure adjustment
Viomi V39.0150Ultrasonic sprayer, large tank (250 ml)
Xiaomi Mi Robot Vacuum-Mop 2 Pro8.5100Laser navigation, support for detergents
Xiaomi Mi Robot Vacuum-Mop 2 Lite7.580Budget version, weak pump

Leader of the rating - Dreame D9 β€” It's a self-cleaning wipe, and it's a way to adjust the pressure on the floor, but it's also the most expensive, and for small apartments, the Xiaomi Mi Robot Vacuum-Mop 2 Pro is the best option, and if you're on a budget, the Viomi is the best option. V3 Offers the best price/quality ratio.

When choosing, also pay attention to:

  • πŸ”„ Separate cleaning: Some models (e.g. Dreame) D9) allow you to first sweep, and then wash the floors in different cycles.
  • πŸ“² Smart Home Integration: Xiaomi Robots Work with Google Assistant and Alice, and Viomi Supports Apple HomeKit.
  • πŸ”Š Noise level: When wet, robots work quieter than when dry (for example, Viomi). V3 It only emits 55 dB).

FAQ: Frequent questions about wet cleaning on Xiaomi robots

Can a robot be used to wash carpets?
No, wet cleaning is only for hard surfaces (tile, laminate, parquet). For short-pile carpets, you can use sweep-only or special dry-cleaning nozzles. Long-tail carpets can damage a napkin or stall a robot.
How much water does a robot use in one cleaning?
Consumption depends on the model and the intensity of the spray. On average: Xiaomi Mi Robot Vacuum-Mop 2 Pro: 30-50 ml / cycle. V3: 40-70 ml/cycle. Dreame. D9: 50-90 ml/cycle (due to the self-cleaning of the wipe) This is enough for 1-1.5 hours of continuous operation.
Why doesn't the robot return to base after wet cleaning?
The reasons may be: the napkin is too wet and interferes with the movement of the wheels. The base is mounted on a slippery surface (the robot cannot exactly dock), the battery is out (wet cleaning consumes energy faster), the IR sensors on the base or robot are contaminated (wipe them with a dry napkin), try to manually put the robot on the base and check if the charging indicator lights up.
Can I put hot water in the tank?
No, all Xiaomi robots are designed for room temperature water (15-25).Β°Hot water can: Damage plastic parts of the tank, cause condensation inside the shell, disable the pump (in electronically controlled models), except for models with the function of Water heating (for example, some versions of Viomi), but even in them the temperature does not exceed 40Β°C.
How often should I change a napkin for wet cleaning?
The life of the wipe depends on the intensity of use: When cleaning every 1-2 months, when cleaning 2-3 times a week, every 3-4 months. Signs that it is time to replace the napkin: The appearance of divorces after cleaning, unpleasant smell from the napkin (even after washing), loss of shape or holes in the fabric. The original Xiaomi wipes serve longer than third-party counterparts due to special impregnation.