How to enable wet cleaning on Xiaomi Vacuum Mop: a complete guide with nuances

Xiaomi Vacuum Mop (and its modifications like Pro, 2 Lite or SE) combines dry and wet cleaning, but many users face problems when first turning on the floorwashing mode. Most often this is due to improper installation of accessories, incorrect settings in the Mi Home app or the banal lack of water in the tank. In this article, we will analyze all the ways to activate wet cleaning – from basic to hidden functions – and explain why the robot can ignore your commands.

It's important to understand that the switching algorithm depends on the firmware version and the device model. For example, in Xiaomi Vacuum Mop 2 Pro, wet cleaning is configured through a separate wash section, and in the budget Xiaomi Vacuum Mop Essential, the option is hidden deeper. We took into account all the nuances and prepared a universal instruction that will suit most devices in the line. If your vacuum cleaner behaves outside the box, check the compatibility table at the end of the article.

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

Before you activate the wash mode, make sure that the robot is physically ready for the procedure, and most often users miss this step, which either causes the vacuum cleaner to not respond to commands or involves cleaning without water.

• 💧 Water level in the tank: Must be between the marks MIN and MAX. A spill or a short one will lead to an error. E3 (insufficient water) or E4 (flooding).
• 🧽 Cloth/napkin: Must be tightly attached to the washing module. If it is shifted or torn, the humidity sensor will block the mode.
• 🔋 Battery charge: Wet cleaning requires at least 20% charge. At low levels, the robot will automatically switch to dry cleaning.
• 🚫 Obstacles: Remove carpets, wires and small objects. Xiaomi Vacuum Mop sensors can perceive them as a barrier and interrupt cleaning.

Pay special attention to the washing unit. In the Pro and 2 Lite models, it's removable -- check that it's installed before the click. In budget versions (like Essential), the module is integrated, but there's a separate lever to fix the rag. If the robot emits an audible signal and flashes red when trying to turn on the sink, 90 percent of the time the problem is in the mechanical part.

Method 1: Enabling wet cleaning through the Mi Home app

The most reliable way to activate the mode is to use the official Mi Home app (or Xiaomi Home for new versions). The interface may vary depending on the region and version of the software, but the overall algorithm is the same:

1. Open Mi Home and select your robot vacuum cleaner from the device list.
2. Go to Cleaning (or Cleaning in English).
3. Click on the Water icon (drop) or select Wet Cleaning (Mop).
4. Adjust the intensity of the water supply (usually 3 levels: Low, Medium, High).
5. Start cleaning with the Start button.

If your app doesn’t have a separate button for wet cleaning, try:

• 🔄 Update Mi Home to the latest version (on the App Store or Google Play).
• 📱 Reconnect the robot to the application (forget the device and add again).
• 🌐 Change the region in the app settings to China (sometimes there are advanced features available).

Xiaomi Vacuum Mop 2 Pro models with firmware 3.5.8+ have a Smart Mopping feature that automatically adjusts the water supply depending on the type of coating (laminate, tile, parquet). To activate it, go to Settings → Cleaning Modes → Smart wash.

Method 2: Activate wet cleaning from a physical button

Not everyone knows, but wet cleaning can be enabled without the application, from the control panel on the robot body, which is useful if:

• 📵 No Wi-Fi access or connection failure.
• 🔄 Mi Home app doesn't see the device.
• ⚡ You need to start cleaning immediately (for example, if water is spilled).

Instructions for most models:

1. Make sure the robot is off (press and hold the power button for 3 seconds).
2. Pour water into the tank and fix the cloth.
3. Press the Moika button (drop icon) or the Moika + Start combination (depending on the model).
4. Confirm the launch by pressing Start (button with arrow).

On the Xiaomi Vacuum Mop SE and some other models, the Moika button is missing.

1. Press and hold the Start button for 5 seconds until you hear the beep.
2. Press Start again briefly – the robot will turn on the combined mode (dry + wet cleaning).

💡

If the robot doesn't respond to the buttons, try resetting it to factory settings. To do this, press and hold the Home and Start buttons simultaneously for 10 seconds until the white indicator flashes.

Common Mistakes and How to Fix Them

If wet cleaning does not turn on, the robot gives an error or washes the floors "dry", check the following points:

Especially, users are faced with an E4 error (tank overflow), which is caused not only by excess water, but also by improper installation of the tank. Make sure that it fits tightly to the case - sometimes just remove and put it again. If the error repeats, check the float sensor (a small plastic "tongue" inside the tank) for contaminants.

⚠️ Warning: Never use tap water for wet cleaning. Xiaomi Vacuum Mop recommends pouring distilled or boiled water to avoid lime plaque on sensors and tubes. Otherwise, you will have to clean the water supply system in 2-3 months.

Hidden settings: how to adjust the intensity of the wash

The standard Mi Home interface has only 3 water levels, but some firmware has hidden modes that allow for more precise humidity control to activate them:

1. Go to Settings → Additional → Cleaning modes.
2. Press the Water Volume (Water Volume)
3. If you have firmware 3.5.5+, hold your finger on the 5-second intensity slider until the Advanced Settings menu appears.
4. Choose one of the additional modes: Eco - minimum water consumption (for laminate); Turbo - increased supply (for persistent pollution); Auto - adaptive mode (requires calibration).

Xiaomi Vacuum Mop 2 Pro Laser Navigator (LDS) models have a Zone Wash feature that allows you to specify areas with different intensity, for example, you can make the robot wet the kitchen harder, and in the hallway to work in economical mode.

1. In the app, click the Map.
2. Set a zone on the plan.
3. Select the Zone Settings → Intensity of the wash.

Wet cleaning on a schedule: how to automate the process

One of the most useful features of the Xiaomi Vacuum Mop is the ability to schedule wet cleaning for a specific time, which is convenient if you want the robot to wash the floors while you are away.

1. At Mi Home, go to Schedule.
2. Click Add and select the days of the week.
3. Specify the time of the cleaning.
4. In the section Cleaning type, select Wet or Combined.
5. Save the schedule.

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To save water and electricity, use the Smart Schedule feature, which analyzes your habits and suggests the optimal time to clean (for example, when you are not at home).

Frequent Questions and Decisions (FAQ)

Model comparison: what wet cleaning functions support different versions

Not all Xiaomi robot vacuum cleaners are equally good at floor washing, and below is a comparative table of key models for wet cleaning functionality:

If you are just planning to buy, look for the Xiaomi Vacuum Mop 2 Ultra, the only model with automatic washing of the cloth with hot water and drying. Otherwise, the cloth will have to be washed by hand after each cleaning.

⚠️ Note: In models without Essential (some versions of Lite), wet cleaning will be done on all surfaces, including carpeting, which can damage the carpet or break the robot due to the pile entering the washing module. The solution is to manually limit cleaning areas in an app or put physical barriers (such as magnetic tape).