Disassembly of air purifier Xiaomi Mi Air Purifier Pro: detailed instructions with expert advice

Why to Disassemble an Air Purifier and When It Is Needed

Xiaomi Mi Air Purifier Pro is a popular device for keeping indoor air clean, but even the most reliable equipment requires periodic maintenance. The main reason for disassembly is to replace or clean filters that eventually become clogged with dust, allergens and other contaminants. HEPA-filter every 6-12 months, and coal filter every 3-6 months, depending on the intensity of use.

However, disassembly may be necessary in other cases:

• 🔧 Extraneous noise during the fan operation (there may be foreign objects or wear of bearings).
• 💨 Decreased performance – the device is worse at capturing air or not coping with pollution.
• ⚡ Power or sensor problems (e.g., incorrect level display) PM2.5).
• 🔄 Upgrade – installation of non-original filters or redesign of the cooling system.

It is important to understand that Xiaomi Mi Air Purifier Pro (models) AC-M8-SC and AC-M6-SC) It has a modular design, but not all components are designed for user disassembly. For example, the electronic control board and the fan engine are not repairable at home - their replacement requires specialized skills.

Preparation for disassembly: tools and security measures

Before you start disassembling, make sure you have everything you need.

• ✅ Plastic blade (or mediator) - for neat opening of latches.
• ✅ Cross screwdriver (usually) PH2) — hull-rotor.
• ✅ Vacuum cleaner with a narrow nozzle - to remove dust from internal cavities.
• ✅ Soft brush or brush - to clean the fan blades.
• ✅ Antistatic bracelet (optional) – to protect electronic components.

Also prepare the workplace: a flat surface covered with soft cloth (so as not to scratch the body), and good lighting. If you disassemble the cleaning device, purchase new filters in advance (original or compatible, for example, from the scaling machine). 3M or Philips).

⚠️ Warning: Don't start disassembling if the device is warranty-free! Xiaomi will cancel warranty obligations when you self-open the case. Check the warranty period in the Mi Home app or on the box.

A critical feature of the Pro is that unlike the base version, it uses a dual engine with separate blades to infuse and blow air. Incorrect assembly can lead to imbalance and vibrations!

Disconnect the device from the socket|Take a picture of the location of the screws and latches|Prepare containers for small parts|Wear gloves (optional)|Check for spare filters.-->

The Xiaomi Mi Air Purifier Pro is a step-by-step disassembly

So let's start with the top panel dismantled.

1. Turn the cleaner upside down (control keys should be on the bottom). On the bottom of the case, you'll see 4 rubber legs, there are screws underneath, and you'll gently put the legs in a plastic spatula and unscrew the screws.
2. And you take the bottom lid off by pulling it over. It's mounted on the latches -- don't put too much effort into not breaking the plastic. Under the lid, you'll see a filter unit and some electronic stuffing.
3. Remove the filter element by pulling it up by the handle. In the Pro, it consists of two parts: a pre-filter (grid) and a main filter. HEPA+Notice the perimeter sealing gum, it can't be damaged!
4. Unscrew the 4 screws that hold the upper part of the body (under the decorative grille). After that, carefully separate the upper and lower halves, starting at the back of the device.

You now have access to the internal components:

• 🌀 Fan engine (double, with separate blades).
• 📶 Control board with Wi-Fi module (on the left side).
• 🔋 Power supply unit (hidden under a metal screen).
• 📊 Sensor. PM2.5 (squirt).

⚠️ Warning: Don't touch the sensor PM2.5 Fat marks or dust on his lens will cause incorrect readings. Use a dry cotton swab soaked in alcohol to clean.

Cleaning and maintenance of internal components

After disassembling, the first thing you do is look at the fan blades. In the Pro, there are two of them: one is responsible for sucking in air, the other is for blowing out. They often accumulate dust, hair and fur of animals that reduce performance.

1. Use a vacuum cleaner at minimum power or a soft brush to remove large contaminants.
2. For persistent stains, moisten the microfibre wipe in a soapy solution (no more than 10% water!) and gently wipe the blades.
3. Check the balance: once cleaned, the blades should rotate freely, without jamming. If you notice a backlash, the bearings may be worn out (replacement of the engine is required).

Pay special attention to the air quality sensor, which is a common cause of misstatement in the Mi Home app.

• 🕳️ Carefully remove the sensor protective grille (it is attached to the latches).
• 🧴 Wipe the lens with a cotton swab soaked in isopropyl alcohol (at least 70%).
• 🌬️ Blow the sensor hole with compressed air (such as a canister to clean the keyboard).

If you notice that the device is not turning on or responding to buttons, check:

• ⚡ Power supply - whether there are swollen capacitors or the smell of burning.
• 🔌 Connection of plumes between the control board and buttons.
• 📱 Firmware – sometimes failures are solved by resetting settings (press the power button for 10 seconds).

💡

If the device makes a loud noise after cleaning, check if the fan blades touch the body, perhaps the seal has moved during assembly or the engine attachment screws have weakened.

Replacement of filters: original vs compatible analogues

The official filters for Xiaomi Mi Air Purifier Pro have the following articles:

• FB-AIR-M8-FIL — original HEPA+coal filter (resource) ~6,500 hours).
• FB-AIR-M8-PRF — Preliminary filter (washable, resource unlimited).

The cost of the original kit is from 2500 to 4000 rubles, depending on the seller, but there are compatible analogues on the market that can save up to 50% of the budget.

When choosing non-original filters, pay attention to:

• 📏 The sizes must be exactly the same as the original (240×240×50 mm for the main filter).
• 🔬 Certification – Look for the labeling HEPA H13 higher.
• ⚖️ Weight – a high-quality carbon filter weighs at least 500 g (in the original) ~600g).
• 📄 Warranty – reliable manufacturers (e.g. Filtero or PureAir) give a warranty of 6-12 months.

Filter replacement process:

1. Remove the old filter by pulling the handle up.
2. Clean the sealing gum from dust with a dry wipe.
3. Install a new filter by combining the arrow on the case with the direction of air (usually indicated by the inscription). AIR FLOW).
4. Close the lid before clicking - it should fit tightly without gaps.

⚠️ Warning: After changing the filter, reset the resource counter in the Mi Home application! → Reset the filter counter. Without it, the device will show the wrong resource balance.

💡

Using uncertified filters can increase engine load and reduce the life of the device. Original filters are tested for compatibility with the Mi Air Purifier Pro air exchange system.

Common Mistakes in Disassembly and How to Avoid Them

Even experienced users sometimes make mistakes that lead to breakdowns.

1. The latch damage. The plastic clips are fragile -- don't try to open the case with a screwdriver. Use a plastic blade and press the perimeter evenly.
2. Loss of screws or springs. In the Mi Air Purifier Pro, some screws are of different lengths! Take a picture of their location before extraction or fold them into separate containers.
3. If the filter is inserted backwards, the device will be less efficient and the engine will overheat. AIR FLOW!
4. Moisture on electronic components. Never wash the control board or engine with water! Use dry brush or compressed air to clean.
5. Ignoring sensor calibration after cleaning the sensor PM2.5 The device may be showing incorrect values. To calibrate, leave the cleaner to run at a maximum power of 30 minutes in a clean room.

If the device does not turn on or is not operating stable after assembly, check:

• 🔌 Correct connection of plumes (especially to the control board).
• 🔋 Reliability of fastening of the power supply unit - it should fit tightly to the body.
• 🌀 Balancing of fan blades - they should not touch the walls.

If the problem persists, try resetting to factory settings:

1. Disconnect the device from the network.
2. Press the power button for 15 seconds.
3. Connect the power and turn on the cleaner.

When the disassembly will not help: signs of serious breakdowns

Not all problems Xiaomi Mi Air Purifier Pro solved cleaning or replacing filters. There are symptoms that indicate malfunctions that require professional repair:

• 🔥 The smell of burning during operation is a sign of engine overheating or short circuit on the board.
• 🔊 Screaming or knocking in the engine - wear of bearings or deformation of the shaft.
• 📵 Lack of response to buttons and application - failure of the control board.
• 🌡️ Unintentional shutdown after 5-10 minutes of operation – the thermal protection works.
• 📉 A sharp drop in performance even after replacing filters - air leakage through cracks in the case is possible.

In these cases, self-repair can lead to more expensive repairs or a complete failure of the device. Contact an authorized Xiaomi service center or a proven repair technician.

If your device is warranty, do not disassemble it yourself! in Xiaomi service centers warranty repair takes up to 14 days, but costs free (if you confirm a factory defect).

FAQ: Frequent questions about disassembly and maintenance