How to clean the vacuum cleaner Xiaomi Dream V9: detailed instructions with photos and tips

The Xiaomi Dream V9 is a smart device that makes cleaning a home much easier but requires regular maintenance. Many users face the problem of reducing suction power or smelling bad, unaware that the cause is clogged filters or contaminated dust collectors. According to service centers, 80% of robot vacuum cleaner breakdowns are due to late cleaning of key nodes.

In this article, you will find step-by-step instructions for cleaning all components of the Xiaomi Dream V9, including hidden parts that are not mentioned in the official documentation, we will discuss how to properly disassemble and flush filters, clean the turbine of wound hair, and give recommendations for the care of brushes and sensors, and pay special attention to the typical errors that lead to the vacuum cleaner failure.

Preparation for cleaning: what will be needed

Before you start the procedure, prepare the necessary tools and materials, which will save time and help to avoid damage to the device.

• 🧼 Soft brush (for example, tooth or paint brush)
• 🧴 Means for washing dishes or a special cleaner for equipment
• 💦 Warm water (not above 40)°C)
• 🧻 Microfibre wipe or lilac-free fabric
• 🔧 Plastic blade or blunt knife (to remove sticky dirt)
• 🧲 Small vacuum cleaner or hair dryer (for drying parts)

Do not use aggressive detergents, acetone or solvents - they can damage plastic and rubber parts. Also avoid metal objects that can scratch the case or damage seals. If you clean the vacuum cleaner for the first time, take a picture of the location of all the parts before disassembling - this will help to properly assemble the device back.

⚠️ Warning: Never immerse the vacuum cleaner body completely in water, there are electronic components inside that do not have protection from moisture, even a brief ingress of water can cause contacts to corrosion or short circuit.

Cleaning the dust and garbage container

The dust container is the first element that requires regular cleaning. In the Xiaomi Dream V9, it is located at the top of the case and is easily removed by pressing a special latch. The recommended cleaning frequency is after every 3-4 cleaning cycle, but if there are animals or many carpets in the house, you need to do this more often.

Cleaning algorithm:

1. Turn off the vacuum cleaner from the power supply and remove the container.
2. Press the red button at the bottom of the container to open the lid.
3. Put the trash in the urn. If there's any hair or wool inside, remove it manually.
4. Wash the container with warm water with a detergent added. Use a brush to clean corners and ribbed surfaces.
5. Dry the part thoroughly. A wet container can cause an unpleasant odor.

Notice the sealing gum at the edge of the container, which can become deformed or covered with sticky plaque over time, wipe it with a wet wipe and grease it with silicone grease (such as WD-40 Specialist) to extend its life.

Remove all garbage and hair |Wash the container with water |Dry for at least 2 hours |Check sealing gum-->

Cleanup HEPA-filter and prefilter

Filters are light vacuum cleaners, and their condition directly affects the suction capacity and air purification quality. Xiaomi Dream V9 has two filters:

• 🔄 Prefilter (net of synthetic material) - traps large dust particles.
• 🌬️ HEPA-filter (fine cleaning) – captures microparticles, allergens and bacteria.

The manufacturer recommends replacing HEPA-filter-in 3-6 months, but with intensive use, this period is reduced to 2 The prefilter can be washed and reused.

For filter removal:

1. Remove the dust container.
2. Lift the filter compartment cover (usually it is fixed with latches).
3. Take out the pre-filter carefully and HEPA-filter.

⚠️ Attention: HEPA-The filter can't be washed or blown with a hair dryer, the water destroys the microstructure, and the hot air deforms the material, and if the filter is contaminated, it needs to be replaced. HEPA-filter reduces the efficiency of air cleaning 60-70%.

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If you can’t find the original HEPA-filter for Xiaomi Dream V9, A universal filter with labeling is suitable H11 or H12 The key is to check the size compatibility before you buy.

Removal of hair and thread from rollers and brushes

Side brushes and the main roller (if you have one) are hair, thread and wool magnets. Wrapped hair not only reduces cleaning efficiency, but also increases engine load, which can lead to overheating. Service centers note that 30% of complaints about “low suction” are solved by simply cleaning the roller from the hair.

To clean the brushes:

1. Then, remove the slacks and pull them on your back (they are attached to the latches).
2. Remove the caps from the axles and remove the wound hair. Use scissors or tweezers for hard-to-reach places.
3. Wash the brushes with water and dry.
4. To clean the main roller, throw away the vacuum cleaner cover (usually it is fixed with two latches) and remove the roller.
5. Remove the hair from the axis of the roller and clean it with a brush. If you have a lot of pollution, you can wash the roller with water, but don't use detergents, because they can damage the rubber nozzles.

Check the roller bearings for backlash, if they're loose or creak, they need to be replaced, and look at the rubber roller blades, which wear out over time and lose their elasticity, and you need to replace the whole roller.

Cleaning turbines and ducts

The turbine is the heart of the vacuum cleaner, and the clogging causes a critical power drop. In the Xiaomi Dream V9, the turbine is located at the bottom of the body and protected by a removable lid.

1. Turn the vacuum cleaner over and remove the lower cover (the screwdriver is not needed - it is attached to the latches).
2. Carefully remove the turbine unit. It consists of blades and a safety net.
3. Remove hair and debris from the blades with tweezers or a brush.
4. Blow the turbine with compressed air (you can use a dryer in cold mode).

And you'll pay special attention to ducts, which are plastic ducts that move air, and they're often clogged with dust and down.

• Use a flexible brush or wire with a cloth at the end.
• Blow the channels with a hairdryer or vacuum cleaner in blowing mode.

⚠️ Warning: Do not touch the turbine blades with your hands - they are sharp and can cut. Also do not use metal objects for cleaning, so as not to damage the balance of the blades. Turbine imbalance leads to increased vibration and accelerated wear of bearings.

Sensor and sensor maintenance

The Xiaomi Dream V9 robot vacuum cleaner is equipped with a variety of sensors that are responsible for navigation, detecting obstacles and controlling charge. Their contamination can lead to malfunctioning of the device: the vacuum cleaner will “blind”, collide with furniture or return to base incorrectly.

What sensors require cleaning:

• 👁️ Infrared sensors (located around the perimeter of the case) - are responsible for detecting obstacles.
• 📡 Laser rangefinder (LiDAR) – used to build a room map.
• 🔋 Charging station contacts – oxidation leads to poor contact.
• 🌡️ Dust sensor – determines the level of pollution.

To clean the sensors:

1. Wipe the IR sensors and LiDAR with a soft napkin dipped in alcohol. Don't press hard, these are sensitive elements.
2. Clean the contacts of the charging station with a cotton swab soaked in isopropyl alcohol.
3. Blow the dust sensor with compressed air (it is located next to the turbine).

If the vacuum cleaner still behaves inadequately after cleaning (for example, does not see the base or “gets stuck” in the corners), reset the settings through the Mi Home application. To do this, go to Device Settings → Reset → Reset the settings to the factory.

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Regular cleaning of LiDAR sensors and IR sensors increases navigation accuracy by 40% and reduces the number of collisions with furniture by 3 times.

Prevention and care advice

To extend the life of the Xiaomi Dream V9 and avoid costly repairs, follow these guidelines:

• 📅 Make a cleaning schedule and stick to it. For example: a container every 3 days, filters once a week, a turbine once a month.
• 🚫 Avoid cleaning construction debris (sand, plaster, sawdust) and abrasive particles quickly wear out the turbine and filters.
• 🔋 Don't leave the vacuum cleaner on charge all the time, optimal mode: charge up to 80% and discharge up to 20.
• 🌡️ Keep the vacuum cleaner in a dry place at a temperature 10-30°C. Higher humidity 70% It can cause corrosion of contacts.

If you notice that the vacuum cleaner has become worse to hold the charge, check the battery status in the Mi Home application. Go to Device Status → Battery. If the capacity has fallen below 60%, consider replacing the battery. The original battery for the Dream V9 is marked BMS05X and costs about 2000-2500 rubles.

It is also useful to update the vacuum cleaner firmware every 3 months. Updates often include navigation error fixes and power optimization. To check for updates, open the Mi Home app, select your vacuum cleaner, and go to Settings → Firmware Update.

Frequently asked questions