Disassembly of the vertical vacuum cleaner Xiaomi: from filters to the engine

Xiaomi’s vertical vacuum cleaners (Mi Handheld Vacuum, Dreame, Viomi) have gained popularity for their compactness and power, but even they require maintenance. Disassembly may be needed to clean filters, replace batteries, or repair turbines. However, the design of these devices is not always intuitive: hidden latches, fragile plastic elements, and the risk of damaging the dust collector make the process non-trivial.

In this article, you will find step-by-step instructions with nuances for different models (including the Xiaomi Mi Vacuum Cleaner G10, Dreame V11 and others), a tool compatibility table, as well as unique tips for disassembling without traces - for example, how to remove the bottom cover without breaking the locks. We will also analyze the typical errors that lead to a breakage of the vacuum cleaner after self-repair.

Preparation for disassembly: tools and security measures

Before you start, make sure that the vacuum cleaner is completely discharged - this minimizes the risk of short circuit when working with the battery.

• ✅ Plastic blades (for unscratching latches)
• ✅ Cross screwdriver (usually) PH0 or PH1)
• ✅ Tweezers (for extraction of small parts, such as sealing rings)
• ✅ Multimeter (to check the battery after disassembly)
• ✅ Silicone lubricant (for processing rubber seals before assembly)

Important: If you're disassembling a filter cleaner, prepare warm water and a soft brush in advance. The HEPA filters in Xiaomi models can't be washed under running water, it destroys their structure. Use only dry cleaning or delicate washing with drying for at least 24 hours.

⚠️ Warning: Don't use metal tools to separate plastic parts -- even light pressure can cause cracks. In 80 percent of cases, when you break down, it's the scratched or broken latches that are to blame.

Removal of the main components: filters, dust collector, battery

To start with the most affordable elements, most Xiaomi models have the following disassembly order:

1. Dust collector: Press the unlock button (usually located on the side) and pull the container up. In the Dreame V11 models, you additionally need to turn it counterclockwise.
2. Pre-filter: Removable with the dust collector, usually a mesh or sponge element that is attached to the latches.
3. HEPA- filter: Located behind the pre-filter. In Xiaomi Mi Vacuum Cleaner G10, it needs to be pulled up with little effort - it is held on a tight rubber gasket.
4. Battery: Requires the bottom cover to be removed (see next section). In removable battery models (e.g. Viomi V3), just press the lock and pull the battery.

Tip: If the filters are heavily contaminated, take a picture of their location before cleaning. Xiaomi vacuum cleaners often use dual filters (rough and fine cleaning), and their entanglement will lead to a drop in suction power.

Disassembly of the body: how to remove the lower cover without damage

This is the most difficult stage. In most Xiaomi models, the bottom cover is attached to 4-6 hidden latches and 2-3 screws.

1. Turn the vacuum cleaner over and remove the vacuum collector.
2. Unscrew the screws (usually hidden under rubber plugs or stickers).
3. Insert the plastic blade into the gap between the top and bottom of the case (start at the corner where the switch button is located).
4. Carefully drive the blade along the seam, alternately snapping the locks. In the Dreame V12 models, the latches are asymmetrical - two of them are power buttons.

Critical: if the lid doesn't lend itself, don't force. You've probably missed a screw or a latch. In Xiaomi Mi Vacuum Cleaner 1C, for example, the extra screw is hidden under a rubber leg.

⚠️ Warning: Dreame vacuum cleaners may release a spring contact of the battery after the lid is removed. It's small and easily lost -- put it in a separate box right away.

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If the latches do not respond, heat the body with a hairdryer (temperature not higher than 50 ° C. The plastic will become more elastic, and the risk of breakage will decrease.

Engine and turbine access: what you can fix yourself

After removing the bottom cover, you will see:

• 🔋 Battery (usually 21.6V or 25.2V, 2,000–2500 mAh capacity)
• 🌀 Turbine (in models with wet cleaning function it is combined with a pump)
• ⚡ Engine (Xiaomi vacuum cleaners use a brushless motor that rarely breaks but can get clogged with dust)
• 🔌 Control board (with charge control chip and power button)

The most common problems that can be solved on their own:

1. Turbine clogging: Hair and thread are wound onto the shaft. Use tweezers and alcohol to lubricate the bearings to clean.
2. Wear of engine brushes: There are no brushes in Xiaomi brushless motors, but the bearing may fail. Replacing it requires a soldering iron.
3. Oxidation of battery contacts: Clean them with a lastic or alcohol. In the Dreame V11, the negative contact is often oxidized.

Warning: If the engine doesn't start even after cleaning, don't rush to disassemble it. First check the fuse on the control board (in Xiaomi Mi Vacuum Cleaner 1C it is located next to the power connector), it can be replaced with a similar one with a nominal value of 10A/250V.

Battery replacement: battery selection and connection nuances

The batteries in Xiaomi vacuum cleaners last 2-3 years with heavy use.

• ⚡ Operating time reduced to 5-10 minutes (at the initial 30-60)
• 🔄 The vacuum cleaner suddenly shuts down even at the shown charge level of 20-30%.
• 🔥 Battery body swelled (see through slits in lid)

The original batteries (the items are listed below) or Samsung/LG analogs with the same parameters will be suitable for replacement. Importantly, Xiaomi vacuum cleaners use the BMS- payload (battery management system), so simply replacing the 18650 elements will not work – you need a ready-made assembly.

Instructions for replacement:

1. Disconnect the battery connector from the control board (in the Dreame V11 it is fixed by a latch).
2. Remove the old battery by unscrewing 2-4 screws of the mount.
3. Install a new battery, connect the connector and lock with screws.
4. Before assembly, check the voltage with a multimeter - it should be 21.6V-25.2V (depending on the model).

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Never use batteries with a different voltage - this will lead to overheating of the control board and can provoke a fire.

Cleaning the vacuum cleaner: how to avoid mistakes

You need to collect the vacuum cleaner in the opposite order, but there are key points:

1. O-rings: Before installing filters and dust collectors, apply silicone lubrication to them - this will prevent air suction and power loss.
2. Latches of the case: Make sure that all the locks are clicked with a characteristic sound. In the Xiaomi Mi Vacuum Cleaner G10, an unlatched cover can block the on button.
3. Test start: After assembly, turn on the vacuum cleaner for 1-2 minutes and check: 🔊 Is there any extraneous noise (squeaking, knocking) 💨 Suction power (put your hand on the nozzle) 🔋 Charge indication (should burn green)

The error that 90% of users make is the wrong installation of the HEPA- filter. It must be oriented with an upward arrow (the filter usually has a marking AIR FLOW). If you confuse the sides, the vacuum cleaner will overheat.

⚠️ Warning: Don't turn the vacuum cleaner on at full capacity after assembly. Start with a minimum mode and gradually increase the speed, which will help identify possible build defects.

Frequent breakdowns after disassembly and how to avoid them

Even with a careful disassembly, there is a risk of problems, and here are the most common ways to fix them:

If the vacuum cleaner starts to warm up after disassembly, it's likely that the duct's leakage is broken.

• The density of the sealing rings
• Integrity of the corrugated tube (often rubbed at the bend site)
• Cleanliness of ventilation holes on the body

FAQ: Answers to Frequent Questions