Xiaomi Mijia irrigators have gained popularity due to a combination of affordable price, compactness and efficiency. However, over time, even such devices can cause problems: clogging of nozzles, wear of seals or breakage of the pump. Instead of buying a new device, many users prefer to disassemble the irrigator themselves - for cleaning, replacing parts or diagnosing malfunctions.
In this article, we will discuss in detail how to properly disassemble the Xiaomi Mijia irrigator (including the Mijia 1 models, 1C, 2 and Pro), which tools you will need, and also give practical tips to avoid typical errors, especially to disassemble the pump, the most vulnerable unit of the device. instruction adapted for beginners, with step-by-step photos and video examples.
We warn you beforehand that dismantling the irrigator will leave you with Xiaomi's warranty if it's still in place, and that doing the wrong thing can damage the internal components, and if you're not sure about your ability, you should contact the service center, but if you decide to do it yourself, follow our recommendations carefully.
Preparation for disassembly: tools and security measures
Before you start disassembling, make sure you have everything you need. Most parts of the Xiaomi Mijia irrigator are plastic, so it's important to avoid brute force - otherwise you risk breaking the latches or the body.
Here is the minimum set of tools you will need:
- ✅ Plastic blade (or mediator) - for careful putting of covers.
- ✅ Cross screwdriver (usually) PH0 or PH1) — hull-rotor.
- ✅ Tweezers – to extract small parts, such as sealing rings.
- ✅ Silicone pad or napkin - so as not to scratch the body during disassembly.
- ✅ Hair dryer (optional) - if you need to soften the sealant (relevant for models with adhesive connection).
Also, prepare your workspace: a table with good lighting, containers for small parts (so as not to lose the screws), and preferably a camera or smartphone — capture each step of dismantling.
⚠️ Warning: Before disassembling, disconnect the irrigator from the network and make sure there is no water in the tank.Even a small amount of liquid can damage electronic components when hit by the board.
Step 1: Disassembly of the body - remove the upper and lower panels
The body of the Xiaomi Mijia irrigator consists of two main parts: the upper (with a water tank) and the lower (with a pump and electronic filling), let’s figure out how to properly separate them.
1 Turn the irrigator upside down and find the screws on the bottom panel, usually 3-4 of them hidden under rubber legs, gently tuck the legs with a plastic shovel and unscrew the screws.
2 Once the screws are removed, grab the bottom of the body and pull it on you while pressing the latches on the sides. If the body doesn't respond, don't put too much effort into it -- you may have missed a hidden screw or latch.
3. When the bottom panel comes off, you'll see the inside stuffing: the pump, the control board and the wires. Don't pull the wires -- they can be soldered to the board!
☑️ Checklist before disassembling the hull
In some models (for example, Mijia Pro) the body can be glued together, in which case you need to carefully warm the seam with a hair dryer (temperature not higher than 60).°C) and apply a plastic spatula. Be careful: overheating will damage the plastic.
Step 2: Pump removal is the most important step
The pump is the heart of the irrigator, and disassembling it requires special care. Xiaomi Mijia models typically use a vibration pump with a membrane that wears out or clogs over time.
To extract the pump:
- Disconnect the silicone tubes that lead from the tank to the pump. They're attached to the plastic lockers -- press them and pull the tube up.
- Unscrew the screws that hold the pump on the board (usually 2-3 screws).
- Carefully lift the pump and disconnect the power contacts, remember their location or take a picture!
If the pump is not working, check:
- 🔍 Membrane - it should be whole, without tears.
- 🔍 Valve - often clogged by the raid from water.
- 🔍 Coil – if the winding is blackened, the pump must be replaced.
⚠️ Attention: Don't take the pump apart completely unless you're confident in your skills. Inside are springs and small parts that are easy to lose.
💡
If the pump pump pumps water poorly, try soaking it in a solution of vinegar (1:1 with water) for 30 minutes, which will help remove lime plaque.
Step 3: Cleaning and Replacing Seals
One of the most common problems with irrigators is leakage of water, usually due to worn-out sealing rings or loose fitting of pipes. In Xiaomi Mijia models, the seals are located:
- 💧 On the tank-hull connection.
- 💧 Pump inlet and outlet.
- 💧 The stains of the stains are placed on the).
To replace seals:
- Take off the old ring with tweezers.
- Wash the seat with alcohol (for degreasing).
- Install a new ring by lubricating it with silicone lubricant (do not use petroleum jelly or oil!).
If the seals are in normal condition, but the leak remains, check:
- 🔧 Tightening of the pump screws - they could weaken.
- 🔧 Integrity of tubes – sometimes they crack over time.
| Type of malfunction | Reason. | Decision |
|---|---|---|
| Weak water pressure | Flogging of nozzles or pumps | Clean with a needle, wash with vinegar |
| Leakage of water | Wear of the sealing rings | Ring replacements + silicone lubricant |
| Irrigator is offline | Problems with the board or cable | Multimeter check, cable replacement |
| Noisy work | Wear of the pump membrane | Replacement of membrane or pump |
Step 4: Disassembly and cleaning of nozzles
The nozzles of the Xiaomi Mijia irrigator become clogged over time due to hard water or toothpaste, and if the jet becomes weak or uneven, they need to be cleaned.
How to unpack the nozzle:
- Remove the nozzle from the body (it is attached to the thread or latch).
- Put a plastic nozzle grille on it with a knife or tweezers.
- Wash the inside under running water using a toothpick to clean the holes.
For deep cleaning:
- 🧼 Soak the nozzles in a solution of citric acid (1 tbsp. l. per glass of water) for 1-2 hours.
- 🧼 Use an ultrasonic bath (if any) to remove plaque.
What to do if the nozzle is not removed?
Step 5: Diagnostics of electronics – board and wires
If the irrigator doesn't turn on or is out of order, the problem can be in the electronics. In Xiaomi Mijia models, the control board is usually located at the bottom of the housing, under the pump.
Check the following elements:
- 🔌 The power cable is often rubbed at the base.
- 🔌 Safety (if any) - should be whole, without blackening.
- 🔌 soldering contacts - inspect for cold soldering (cracks, oxidation).
If you're not an electronics expert, it's best not to touch the board yourself, but some problems can be fixed without special skills:
- 🛠️ Oxidized contacts - wipe with alcohol.
- 🛠️ Weakened wires - gently solder again (or turn to the workshop).
💡
If the irrigator turns on but the pump is not working, first check the voltage supply to the pump with a multimeter. Often the problem lies in the cliff wire, not in the pump itself.
Step 6: Assembly of the irrigator after disassembly
Reassemble the irrigator back in reverse order, following several rules:
- Make sure all seals are in place and lubricated.
- Check the connection of the tubes - they should sit tightly, without inflections.
- Twirl the screws of the case cross-cross to avoid distortion.
- Before the first turn on, pour water and check for leaks.
If the irrigator is not working properly after assembly:
- 🔄 Check the correct connection of the pump (possibly confused contacts).
- 🔄 Make sure the pump membrane is installed on the correct side.
After successful assembly, conduct a test run:
- Turn on the irrigator at minimum power.
- Check the water pressure and the absence of leaks.
- Gradually increase the power to the maximum.
Frequent mistakes in disassembly and how to avoid them
Even experienced users sometimes make mistakes that lead to a breakdown of the irrigator, and here are the most common ones:
1. Use of excessive force in disassembling the hull.
Plastic latches are fragile - if the body does not lend itself, look for hidden screws or warm up the seam with a hairdryer.
2. Loss of small parts (screws, seals).
Use a magnetic bowl or containers with lids to store parts.
Incorrect installation of the pump membrane.
The membrane has a “facial” and “backside” sides – if you confuse it, the pump will not pump water.
4. Water hitting the board.
If this happens, turn off the power immediately and dry the fee with a hairdryer (cold air) for 12-24 hours.
5. Use of inappropriate tools.
Metal screwdrivers scratch plastic, knives can break latches. Use only plastic blades.