How to properly set up wet cleaning on the robot vacuum cleaner Xiaomi Dreame D9: full-lead

Xiaomi DreameBot Robot Vacuum D9 — It's not just a dry cleaning device, it's a complete clean-up assistant, and wet cleaning in this model is a premium solution, but many users are facing challenges. And the napkin is dry, the floors are diluted, the robot refuses to wash certain areas, and it's all about the wrong settings, because factory settings rarely fit real-world conditions.

In this article, we will discuss not only the basic activation of the function, but also hidden parameters that Xiaomi does not advertise in the official documentation. You will learn how to adjust the humidification intensity for different types of coatings (laminate, tile, parquet), which wipes to choose for maximum efficiency, and how to avoid typical errors that make the robot “lazy” to wash the floor.

Preparing the robot for the first wet cleaning: what to do before the function is turned on

Before you activate the wet cleaning, make sure your DreameBot is in the right place. D9 You're ready to handle water, neglect of preparation is the main cause of pump and humidity sensor failures.

First, check the package. The box should have:

• 📦 Water tank (usually transparent, with blue lid)
• 🧼 Washing wipe for wet cleaning (microfibre, with Velcros)
• 🔧 A fastener adapter for a napkin (plastic frame)
• 💧 Water filter (small white cylinder inside the tank)

If something is missing, don't risk using homemade analogues, for example, a regular cloth without fixing can clog the pump or damage the sensors.

Two: Update the firmware. In older versions of the software (up to) 3.5.8_2103) Wet cleaning was malfunctioning -- the robot could suddenly stop or skip zones. To check the version, go to Settings. → About the device → If your version is older, update it via the Mi Home app (Section "Firmware»).

⚠️ Warning: If after the update, the robot stopped responding to wet cleaning commands, reset the settings to factory settings (Settings) → Reset → Resetting. This is due to a conflict between saved user profiles and new cleaning algorithms.

Third, calibrate the sensors. Before you clean the first thing, put the robot on a flat surface (not on the carpet!) and run the sensor test through the engineering menu:

1. Hold the buttons Home. + 5 seconds until the indicator lights up.
2. Press Spot 3 times – the robot will emit an audible signal and begin self-diagnostics.
3. Wait until it's finished (about 2 minutes). If the indicator flashes red, recalibrate.

This procedure ensures that the humidity and flow sensors work correctly.

Activation of wet cleaning: step-by-step instructions with hidden settings

Now, to the main thing, turn on the function. Most users are limited to the basic settings in the app, but in DreameBot. D9 Extended parameters that allow you to more accurately control the process.

Step 1: Installation of a water tank.

• 💦 Remove the dust collector (click on the latch from behind).
• 🔄 Install the water tank in the place of the dust collector - it should click.
• 🔋 Connect the power plume (the small connector on the right) If you don't plug in, the pump won't work!
• 🚰 Pour water to the mark MAX (Use only distilled or boiled water — tap water can leave a plaque on the sensors.

Step 2: Fixing the napkin.

• 🧺 Put a napkin on a plastic frame (Velcro down).
• 🔗 Attach the frame to the bottom of the robot - it should fit snugly to the base.
• ⚠️ Check that the wipe does not cover the infrared sensors (black round holes in the front).

Step 3: Set up in the Mi Home app.

Open the app, select your robot and go to Cleanup Settings → Wet cleaning. 3 modes available:

• 🌊 Weak (30 ml / m2) - for laminate and parquet.
• 💧 Medium (45 ml / m2) - for tiles and linoleum.
• 🌊🌊 Strong (60 ml/m2) - for persistent contaminants (for water-resistant coatings only!).

Step 4: Hidden settings (available only through the engineering menu)

To open the extended parameters:

1. In the Mi Home app, go to Settings → About the device.
2. Click 5 times on the Software Version and the developer menu will open.
3. Select Water Pump Settings and set: Pump Delay: 2 seconds (delay before water starts); Water Flow: 80% (optimal flow for most coatings); Dry Pass: On (the robot will make an additional passage without water to dry).

These parameters allow you to avoid divorces and overhydration.

💡

If the robot leaves a strip of water, reduce the water flow to 60% And turn on the Dry Pass. 5-7 Minutes to clean, but the floors will be perfectly dry.

Choosing wipes and detergents: what you can and what you can not

The quality of the wipe is responsible for 70 percent of the efficiency of wet cleaning, and many users make the critical mistake of using regular rags or wipes from other robots, resulting in poor fit, a clogged pump or scratches on the floor.

Official napkins for DreameBot D9 have:

• 🧲 Magnetic Velcros for reliable fixation.
• 🧵 Soft microfiber layer (does not scratch the coating).
• 💧 Water-repellent base (does not get wet through).

Alternatives:

• ✅ Roborock wipes (suitable in size but thinner).
• ✅ Swiffer microfiber (to be trimmed to size) 25×25 centimeter).
• ❌ Common rags (clog the pump, leave the pile).
• ❌ Sponges or wipes with abrasive (scratching the floor).

For detergents, you can only use specialized formulations for robot vacuum cleaners. Conventional floor cleaners foam and can damage the pump.

⚠️ Attention: If you use detergent, flush the tank after each cleaning. Residues crystallize and clog the filter. Use warm water with citric acid (1 tsp per 1 l) to flush).

Lifehack: To keep the wipe clean longer, you can pre-vacuate the floor in Max mode, which will remove the large debris, and the microfiber will not get clogged with sand, and you can also use double wipes, put two thin ones on top of each other, which will increase absorbability, but require more frequent washing.

Optimizing wet cleaning for different types of coatings

DreameBot D9 It can automatically recognize the types of coatings, but its algorithms are not perfect, like it can take dark laminate for tile and pour water over it, which will cause it to swell. To avoid problems, set up zones with different parameters.

Method 1: Manually configure zones in the Mi Home application.

1. Open the cleaning map.
2. Click Add Zone and circle the room.
3. Select the type of coverage: 🪵 Laminate/parquet: Weak mode, turn off Dry Pass. 🧱 Tile / porcelain porcelain: Strong mode, turn on Dry Pass. 🛋️ Carpet Covers: Turn off wet cleaning completely.

Method 2: Using virtual walls.

If the robot is persistently trying to wash the carpet or other unwanted area:

1. In the app, click Virtual Walls.
2. Draw a line around the no-go zone.
3. Select the restriction type: No cleaning or dry cleaning only.

💡

Never store a robot with water in a tank, even distilled water in a tank. 2-3 The day becomes a breeding ground for bacteria, and the pump can become sour».

Extended scenarios: scheduled cleaning, voice control and smart home integration

Wet cleaning in DreameBot D9 It supports automation through Mi Home, Google Assistant and Alice, and it allows you to run your cleaning remotely or on schedule, but there are nuances.

Scheduling settings:

1. In the Mi Home app, go to Cleanup on schedule.
2. Choose the days and the time.
3. Activate the option Wet cleaning and specify the areas.
4. Set Repeat and Save.

⚠️ Warning: If there is no water in the tank, the robot will skip cleaning and notify you!Always check the water level before bed if the cleaning is scheduled for the night.

Voice control:

• 🎤 For Alice: "Run a wet cleaning in the living room».
• 🤖 Google Assistant: Hey Google, ask Dreame to mop the kitchen».

To make the teams work, the robot must have the Voice Assistant enabled and the Mi Account account tied in.

Integration with a smart home: DreameBot D9 Supports scripts in Mi Home. Examples of useful automations:

• 🌅 Home Cleaning: If geolocation shows you’re near home, the robot starts cleaning.
• 🌡️ Cleaning at high humidity: if the sensor shows humidity >60%, the robot includes dry cleaning (good for allergic people).
• 🚪 Cleaning after opening windows: if the window sensor shows "open» >10 minutes after closing, wet cleaning starts.

To customize the scenarios:

1. In Mi Home go to Automation → Add.
2. Select a trigger (e.g., geolocation).
3. Add the action: Start cleaning (DreameBot) D9).
4. Specify the parameters (wet/dry, zones).

💡

If the robot does not respond to voice commands, check the region in the Mi Home settings. Russia should be selected for Russia, otherwise Alice will not see the device.

FAQ: Answers to Frequent Questions