Xiaomi Derma (JSQ01ZM, JSQ02ZM and their modifications) has become a popular solution for maintaining the optimal microclimate in apartments. However, over time, even the most reliable equipment requires maintenance: cleaning scale, changing filters or diagnosing malfunctions. Disassembly of the case is the first step in this process, but many users face difficulties: hidden latches, the risk of damage to seals or resetting factory settings if you do not.
In this article, you will find a step-by-step photo guide that will help you disassemble the Xiaomi Derma without damage, as well as learn about hidden mounts under the serial number sticker – this nuance is often missed even in official service centers. We will look at the features of disassembly for cleaning, membrane replacement and electronic board repair, as well as give recommendations on tools and precautions.
Preparation for disassembly: tools and security measures
Before you start disassembling, make sure the humidifier is completely off the grid and the water tank is empty. Even residual moisture in the system can short-circuit when in contact with electronic components.
- ✅ Plastic blade (or mediator) - to disconnect the latches of the body without scratches.
- ✅ Cross screwdriver (size) PH0 or PH1) — base-rotor.
- ✅ Tweezers – to extract small parts, such as sealing rings.
- ✅ Isopropyl alcohol (70%+) — Cleaning of contact charges (if repairs are planned).
- ✅ Soft fabric without pile - for cleaning internal surfaces.
Pay special attention to the workplace: close the table with paper or cloth so as not to lose small parts (for example, springs from valves). If you are disassembling a scale cleaning device, prepare a solution of citric acid (2 tablespoons per 1 liter of water) - it is more effective than vinegar and does not damage plastic.
⚠️ Warning: Don't use metal screwdrivers to unplug plastic latches! Xiaomi Derma has brittle locks on the bottom cover that are easy to break.If the latch doesn't lend itself, check if there are any undetected screws left.
Removal of water tank and top panel
Start by removing the water tank, which is the easiest part of the process. Press the unlock button (usually located on the back of the tank) and pull it up. Inside, you'll see an ultrasonic membrane and power contacts. Gently disconnect the tank from the base without exerting any effort on the water level sensor plume.
Next, remove the top panel with the touch buttons, which is mounted on 4 plastic latches (two on each side) so as not to break the locks:
- Insert a plastic blade into the gap between the panel and the body on the side.
- Carefully lead the shoulder blade along the perimeter, alternately snapping the locks.
- Raise the panel by 1-2 cm and disconnect the sensor plume (it is attached to the main board connector).
If the panel fails, check to see if there are any hidden latches under the decorative lining on the front. In JSQ02ZM models, an additional latch is often hidden there.
Turn off the humidifier from the socket
Drain the water from the tank.
Prepare a plastic spatula
Disconnect the sensor plume before the panel is completely removed-->
Discussion of the base: hidden screws and latches
The base of the Xiaomi Derma is mounted on 3 screws (two in front under rubber legs and one in the back under a sticker with a serial number).
- Turn the device over and remove the rubber legs (they are glued, but easily detached without damage).
- Carefully tuck the sticker in the back, and there's a third screw underneath, don't hurt the barcode, it might need to be scanned for warranty repair.
- Then, put them all together and put them in a separate place (they vary in length!).
Once the screws are removed, the bottom cover is separated, and it's held on 6 plastic latches around the perimeter. Start at the back of the device, where the vents are located, where the latches are weaker. If the lid is not moving, check:
- 🔍 Have you forgotten the screw under the sticker (frequent error!).
- 🔍 Does the plume prevent the fan (in models with an ionizer, it can be glued to the cover).
- 🔍 Are there any additional fixtures near the power connector.
What to do if the latch breaks?
Removal of electronic board and ultrasonic membrane
After removing the bottom cover, you will see:
- 📌 Electronic board with control chip (usually green).
- 📌 Ultrasonic membrane (round metal disc in the center).
- 📌 Fan (black plastic case with blades).
- 📌 Water level sensor (thin wire with float).
To extract the fee:
- Disconnect all plumes and connectors (they are usually 3-4: power, touch panel, fan, water sensor).
- Unscrew the screws that attach the board to the base (2 or 4 pieces, depending on the model).
- Carefully raise the fee, do not pull the wires!
The ultrasonic membrane is attached to 3-4 screws and a rubber seal.
- 🔧 The condition of the sealing ring - if it has hardened or cracked, replace it (article for the stainless ring). JSQ01ZM: MDY-007).
- 🔧 Lack of scale on the contacts - clean them with a cotton swab soaked in isopropyl alcohol.
⚠️ Attention: Don't touch the membrane with your bare hands! Fat marks reduce its effectiveness. Use gloves or hold the membrane at the edges.
| Component | Typical malfunctions | Renovation method |
|---|---|---|
| Ultrasonic membrane | Weak steam, crackling at work | Scaling or replacement |
| Electronic payment | Not switched on, flashing indicators | Checking capacitors, flashing |
| Fan | Noise, weak airflow | Bearing lubrication or replacement |
| Water level sensor | Incorrect testimony, constant error | Clearing contacts or replacing them |
Cleaning and maintenance of internal components
If the purpose of disassembly is to clean up scale, focus on the following nodes:
- 💧 Ultrasonic membrane: Submerge it in a citric acid solution for 30 to 60 minutes, then rinse with distilled water. Do not use abrasives!
- 💧 Water tank: Pour vinegar solution (1:1 with water) and leave for 1-2 hours. For hard-to-reach places, use a soft brush.
- 💧 Pipes and valves: Blow them with compressed air (such as a canister to clean the keyboard).
For disinfection (elimination of bacteria and mold), a solution of hydrogen peroxide (3%) will do. Apply it on the inside of the tank and base, then thoroughly rinse. Do not use chlorine-containing products - they will damage plastic and rubber seals.
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If the humidifier produces an unpleasant odor after cleaning, add 1-2 drops of tea tree essential oil (natural antiseptic) to the water, but do not exceed the dosage - this can damage the membrane.
Assembly of the moisturiser: procedure and verification
Collect the device in reverse order, but take into account a few nuances:
- Make sure that the membrane sealing ring is installed exactly - distortions will lead to leaks.
- Connect all the plumes to fixing the board with screws - it is more convenient to control the density of contacts.
- Before the final assembly, check the device: connect it to the network and start the test mode (press the power button for 5 seconds).
After assembly, perform a leakproofness test:
- Pour the water into the tank to the maximum mark.
- Turn the humidifier over (over the sink!) and check if the water is leaking through the joints.
- Turn on the device for 10-15 minutes - the steam should go evenly, without extraneous sounds.
⚠️ Warning: If the humidifier does not turn on after assembly, check the fuse on the board (black cylinder with the inscription) 250V 2A). It can burn up when you short it during a disassembly.
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The most common mistake in assembly is to install a water level sensor incorrectly, and if it's misaligned or contaminated, the humidifier will show "no water" even when the tank is full.
Frequent Mistakes and How to Avoid Them
Even experienced users make mistakes when disassembling Xiaomi Derma, and here are the most common ones and ways to prevent them:
- 🔴 Broken lid latches: Use a plastic spatula, not a screwdriver.If the lock is cracked, fasten it with Loctite 406 glue.
- 🔴 Loss of screws: Stack them in a magnetic bowl or paste on a scotch in order of twisting.
- 🔴 Train damage: Don't pull the wires, grab the connectors. If the contacts are oxidized, clean them with a swallow.
- 🔴 Forgotten screw under the sticker: Always check for hidden mounts, especially in 2023 models and newer ones.
If the humidifier is unstable after disassembly (for example, it spontaneously turns off), check:
- 🔌 Quality of contacts on the board – sometimes they depart when vibrating.
- 🔌 Condition of capacitors (blown or leaky should be replaced).
- 🔌 Moisture sensor settings – reset them to factory settings (hold the "Mode" button for 10 seconds).