How to disassemble the air humidifier Xiaomi: instructions with photos and nuances

Why to disassemble Xiaomi humidifier and when it is necessary

Xiaomi air humidifiers (Smartmi Humidifier series, Mi Air Humidifier and others) require periodic maintenance - at least 1 every 2-3 months. The main reasons for disassembly: cleaning scale and mold, replacing filters, troubleshooting (for example, when the device does not turn on or emits strange sounds). Unlike budget models of other brands, Xiaomi humidifiers have a modular design that simplifies disassembly, but requires accuracy - especially when working with ultrasonic membranes.

If you notice that the device has become worse spray water, there is an unpleasant smell or on the display flashes an E1/E2 error, most likely, the problem lies inside. 90% of the breakdowns of Xiaomi humidifiers are associated with contamination of the ultrasonic module or water level sensor - they can be eliminated independently without contacting the service. However, before dismantling, make sure that the warranty period has expired (usually 12 months), otherwise repair with your own hands will void the warranty.

Preparation for disassembly: tools and security measures

You don't need professional tools to disassemble a Xiaomi humidifier, just what you have in every home.

• 🔧 Plastic blade or mediator (to separate latches)
• 🔩 Cross screwdriver (usually) PH0 or PH1)
• 🧴 Isopropyl alcohol (70%+) clean-up
• 🧽 Soft brush (dental or electronically)
• 📸 Smartphone (to photograph the process - useful when Assembly)

Before you start, disconnect the device from the network and drain all the water from the tank. It is dangerous to work with the humidifier under voltage - even when it is turned off, there may be residual charge on the board. If the scale accumulates inside, soak the removable parts in a solution of citric acid (2 tbsp. l. per 1 liter of water) for 1-2 hours - this will make cleaning easier. Do not use abrasives or metal brushes: they will damage the anti-corrosion coating of the tank.

⚠️ Note: If your humidifier model is equipped UV-lamp (e.g. Smartmi Air Humidifier) 2S), Don't look at it directly when you're on -- UV radiation is bad for your eyes.

Step-by-step disassembling the Xiaomi moisturizer: from the body to the ultrasonic module

Most Xiaomi humidifiers are similar in design, but there are nuances depending on the model. Below is a general guide for popular series (Smartmi Humidifier 2, Mi Air Humidifier and their modifications). If your model is different, check the photos of the internal device (you can find them in the official manual or on forums, for example, 4PDA).

Step 1 Removal of the upper cover and water tank

1. Turn the humidifier upside down, and on the bottom, you'll find 4-6 rubber legs, and there's screws underneath.
2. Carefully tuck the legs with a plastic spatula and unscrew the screws.
3. Disconnect the water tank by pulling it upwards. In some models, it's locked with latches -- don't put too much effort into not breaking the mounts.

Step 2: Dismantling of the electronic module

• 🔌 Disable the plume connecting the control board to the ultrasonic module (usually fixed by a latch).
• 📱 Unscrew. 2-3 - the screw holding the board, and carefully remove it!
• 🔍 Check the board for oxidation or bloated capacitors. If there's damage, you might need a soldering iron.

Step 3: Extract the ultrasonic membrane

This is the most delicate part. The membrane is attached to the base on a silicone pad. Put a plastic spatula around the perimeter, but don't use metal tools, the membrane is fragile! If it has a white coating (scalp), remove it with a cotton swab dipped in vinegar (not alcohol!).

Check the integrity of silicone pads|Clear the contact board from oxidation|Make sure the membrane is dry and free of damage|Apply the heatpaste to the radiator (if any)-->

Cleaning and replacement of consumables

After the demolition, it's time to get the humidifier in order.

1. Scale Removal: Load removable parts (except electronic!) in a solution of citric acid for 1-2 hours. For an ultrasonic membrane, use a soft brush.
2. Filter replacement: In Smartmi Humidifier 2 models, the filter is located under the tank, its life is 3-6 months, and buy the original filter (ZNMSJ01ZM for most models).
3. Cleaning the water level sensor: It's on the board or inside the tank. Rub it with alcohol, so if the sensor is contaminated, the humidifier can give a false signal about an empty tank.

For models with UV-lamp (e.g. Smartmi Air Humidifier) 2S) If the lamp doesn't glow blue when it's turned on, maybe the driver or the lamp itself has failed, and you can replace it with a 254 nm analogue. 5W.

⚠️ Warning: Never use acetone or solvents to clean the membrane, they destroy the coating. If the membrane cracks or deforms, replace it (the original part is worth it). ~1500-2000 ruble.).

💡

If the humidifier starts to work louder after cleaning, check if the membrane is properly installed. It should fit tightly to the base without gaps.

Typical malfunctions and how to fix them

If the Xiaomi humidifier doesn’t turn on, doesn’t spray water, or shows errors, the reason could be as follows:

• 🔋 Not turned on: Check the power supply (voltage should be) 24V If the indicator on the board does not light up, the problem is in the fuse or chip.
• 💧 Does not spray water: Probably clogged membrane or malfunctioned ultrasound generator. Try to clean the membrane, if it does not help - replace it.
• ⚠️ Mistake. E1/E2: Means a problem with the water level sensor, clear its contacts or replace the sensor (article) XMSH02QM Smartmi Humidifier 2).
• 🔊 Heavy noise: Perhaps the fan mounting has weakened or bearings have worn out.

If the humidifier turns on but the steam is cold (although it should be warm), check the heating element. In models with a warm steam function, it is located next to the membrane. When the chain breaks or the spiral burns out, the element must be replaced.

Assembly of the moisturiser: procedure and verification

Collect the device in reverse order, but pay attention to the key points:

1. Make sure the silicone pads are in place – they prevent leaks.
2. Twisting the screws cross-cross to avoid skewing the body.
3. Before the first turn on after assembly, fill the tank with water and let the device stand for 10 minutes - this is necessary to soak the filter.

After assembly, turn the humidifier on to the network and check:

• 🔄 Does the fan work (should blow air from the upper holes).
• 💨 Does the vapor appear through 1-2 minutes after switching on.
• 📶 Is the water level on the display correctly displayed.

If something is not working, take the device apart again and check the density of the membrane and the integrity of the contacts. A common error is a compressed plume, which causes the board to not receive a signal from the sensors.

💡

If the humidifier is quieter after cleaning, but the vapor is weaker, that's normal, so the membrane now vibrates more efficiently, without the scale that used to make noise.

Where to buy spare parts for Xiaomi moisturizer

Original parts for Xiaomi humidifiers can be found:

• 🛒 Official Mi Store (brand filters, membranes).
• 🌍 AliExpress (search by article, for example, ZNMSJ01ZM filter-wise).
• 🔧 Service centers (sometimes sell used parts after repair).
• 🏪 Electronics stores (for example, “Svyaznoy” or “M. Video” – there are universal membranes there).

The cost of spare parts varies:

When buying a product, pay attention to the size and technical parameters. For example, a membrane should have the same vibration frequency (usually 1.7 MHz for Xiaomi models), non-original parts may last less, but they will cost less than buying a new humidifier.

FAQ: Frequent questions about dismantling Xiaomi humidifiers