Wet cleaning on Xiaomi D9: how to turn on and configure correctly

Xiaomi Mi Robot Vacuum-Mop D9 combines powerful dry cleaning with wet cleaning, but many users have difficulty first turning on this mode. Unlike classic models where you just need to attach a napkin, it requires proper tuning through the application and physical preparation of the device. This article will help you understand all the nuances from installing a water tank to choosing the optimal cleaning options for different types of coatings.

The D9 is a smart water control robot that automatically adjusts the humidity intensity depending on the type of floor (laminate floor, tile, flooring), but without prior calibration, the system can work incorrectly, such as leaving stains on glossy surfaces or not enough to moisten highly contaminated areas, and we will detail how to avoid these problems and achieve the perfect result.

Preparing the robot for wet cleaning: what to check before turning on

Before you activate the moping mode, make sure your Xiaomi D9 is fully water-ready.Missing at least one of these steps can cause leaks or damage to flooring.

• 🔋 Battery Charging: Charge level should be at least 50%. At low charge, the robot can interrupt cleaning, leaving wet marks on the floor. Optimal - charge up to 100% before the first launch.
• 💧 Water tank: Check that the water tank is installed correctly (should be clicked) and has no cracks. There is a special filter at the bottom of the tank - it must be washed before first use.
• 🧽 Moping nozzle: Make sure the tissue wipe is clean and evenly attached to the bottom of the robot. 30-40%.
• 📱 Update of firmware: In older versions of the software (below) 3.5.8_0040) You may not have a water intensity control function. Update your firmware through the Mi Home app.

Pay special attention to the type of flooring. Xiaomi D9 is not recommended for wet cleaning on unlaced parquet, cork floors or carpets with high pile. For such surfaces, it is better to limit yourself to dry cleaning or use special protective linings.

⚠️ Warning: If the robot detects an E10 error after installing the tank, immediately remove the tank and check the sealing ring. Often the problem is that it is not properly assembled or foreign objects enter the water supply mechanism.

Step-by-step: how to enable wet cleaning through the Mi Home app

The activation of the moping mode is carried out exclusively through the official application. There are three water intensity levels on the robot menu, but they are only available after pre-tuning.

1. Open the Mi Home app and select your Xiaomi D9 from the device list.
2. Go to Cleaning → Cleaning Settings → Mode of the moping.
3. Activate the wet cleaning slider (it will turn blue).
4. Choose one of three intensity levels: Low (for laminate and parquet) Medium (for tile and linoleum) High (for highly contaminated surfaces)

Click Save and return to the main cleaning menu.

Start cleaning by selecting the area or the entire area of the apartment, and the robot automatically combines dry and wet cleaning.

Important: If the wet cleaning button remains inactive after you save the settings, check if the water tank is installed. Without physically connecting the container, the moping function is blocked at the software level.

The water tank is installed and filled.|The moping nozzle is clean and dry|Intensity level selected in the application|The cleaning area does not contain carpets with high pile|Battery charged at least 50 times%-->

Common Mistakes and How to Avoid Them

Even when properly set up, users often face problems: the robot does not wash floors, leaves puddles or ignores wet cleaning in some rooms.

One of the most insidious mistakes is the mismatch of the map of the premises. If the robot misidentified the type of coating (for example, mistook the laminate for the tile), it may use the wrong level of moisture, in which case manual adjustment of the map through Settings → Map → Edit will help.

⚠️ Warning: Never use hot water or abrasive detergents to refill the tank, which will damage the internal tubes and pumping mechanism, and only special fluids for robot vacuum cleaners (e.g. Xiaomi Floor Cleaning Solution) are allowed).

Customizing cleaning areas: how to eliminate carpets and sensitive surfaces

Xiaomi D9 allows you to flexibly adjust areas where wet cleaning will be used, which is especially important for homes with combined coatings, such as tiles in the kitchen and carpet in the living room.

1. In the Mi Home app, open a map of your apartment.
2. Click Edit → Add an area and circle an area where wet cleaning is not needed (such as carpet).
3. In the zone settings, select only dry cleaning.
4. For other areas, set the desired level of intensity of the moping.
5. Save the changes and start cleaning.

Pay special attention to the fine filter, which is located at the base of the tank, and its clogging leads to a decrease in water pressure and E11 error.

1. Remove the tank and remove the bottom cover.
2. Wash the filter under running water, use a toothbrush if necessary.
3. Dry all the details for at least 2 hours before assembly.

⚠️ Warning: If the robot still produces a water supply error after cleaning, check the integrity of the silicone tubes inside the housing. D9 2022-2023 release.

Xiaomi’s Comparison with Other Models: Which Is Better for Wet Cleaning?

If you haven’t bought a robot vacuum cleaner yet or are in doubt about the choice, compare the Xiaomi D9 with other popular models of the brand in terms of wet cleaning parameters:

The Xiaomi D9 is in the middle in terms of price/quality. Its key advantage over budget models is that it automatically lifts the moping nozzle when switching to the carpet, which eliminates the need for manual control. However, if you want maximum tank capacity and precise water flow adjustment, consider the Xiaomi S7.

For owners of large apartments (100 m2+), it is important to consider battery life. In mixed cleaning mode, the D9 works up to 90 minutes, which is enough for 60-70 m2. For large areas, you will either have to pause to recharge, or choose a model with an auto-empty base (for example, Xiaomi S7 MaxV).

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For optimal results, combine wet cleaning with Zone cleaning 2.0 in the Xiaomi D9 – this allows you to concentrate cleaning the dirtiest areas (for example, near the front door) without processing the entire apartment.

FAQ: answers to frequent questions about wet cleaning in the Xiaomi D9