Replacement of liquid soap in the dispenser Xiaomi Mijia: a complete analysis with the nuances

Xiaomi's automatic liquid soap dispensers are not just a gadget, but a true hygiene assistant.Mijia Smart Liquid Soap Dispenser (also known as the Mijia Smart Liquid Soap Dispenser) MJSXJ05YM or MJSXJ08YM) It's become popular because of its precise dosage, its contactless control, and its integration into the Mi Home ecosystem, but even this smart device has a routine task of replacing liquid soap. It's a simple procedure at first glance, but it's a pitfall. from choosing the right composition to the correct assembly after refueling.

Many users are faced with problems: dispenser stops giving out soap, errors appear in the application or fluid leaks. Most often the reason lies in the wrong filling or use of incompatible detergents. In this article, we will discuss the whole process from A to Z: how to disassemble the device than refill it, how to avoid breakages and what to do if something goes wrong, and also share life hacks that will prolong the life of your dispenser.

If you've just bought a Xiaomi Mijia or you've been using it for a long time, but you've never changed your soap yourself, this is for you. We've taken into account all the nuances, including the differences between the models, the types of fluids, and even the environmental aspects. Let's start with preparation!

1.What liquid soap is suitable for Xiaomi Mijia dispenser?

Not all soaps are equally good for your dispenser. The manufacturer recommends using special compounds with low viscosity (up to 1500 mPa·s) to prevent the device's pump from wearing out prematurely. But what does this mean in practice?

First, we forget about the thick shower gels or shampoos, they clog the mechanism, and second, aggressive chemical compounds (such as those with chlorine or abrasive particles) can damage plastic parts.

• 🧼 Liquid soap marked "for automatic dispensers" - for example, from Simplehuman or Ecozone.
• 🧴 Alcohol-based antibacterial agents (up to 70% alcohol), but without perfume.
• 🌿 Eco-soap with natural surfactants (such as Astonish or Ecover) if you are interested in biodegradability.
• ⚠️ Diluted plain soap – only if you know the proportions exactly (usually 1:1 with distilled water).

Critical: Never use products with small particles (scrabs, peels) or oils — they form a film on the sensors and disable the device. If you doubt the composition, check its viscosity: drip the soap on an inclined surface — if it drains quickly and evenly, will do.

The Mi Home app has a list of certified products for Mijia.

1. Open the app and select your dispenser.
2. Go to Settings. → Care advice.
3. Put it on the Compatible Liquids tab.

2.Replacement preparation: what will be needed?

Before you start, make sure you have:

• 🔧 New liquid soap (volume depends on model: 300 ml for MJSXJ05YM or 500 ml for MJSXJ08YM).

Important: If the dispenser is plugged into the outlet, disconnect it from the power before refueling (MJSXJ08YM) enough to remove the battery or put the device into sleep mode through the application.

Also, prepare the work surface: put a paper towel or film on the table, so you avoid stains if the soap spills. If you fill up the dispenser for the first time, take a picture of its disassembled view of the phone, which will help you to properly collect everything back.

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Before replacing the soap, check its temperature. if the liquid is cold (below 15)°C), hold the bottle in warm water for 5-10 minutes, so it becomes less viscous and easier to pump through the pump.

3. Step-by-step instruction: how to disassemble and fill the dispenser?

The process is different for the top and bottom gas models, and we'll look at both.

For the model MJSXJ05YM (filler):

For the model MJSXJ08YM (bottom-station):

After refueling, be sure to pump the system:

1. Turn on the dispenser (plug in the socket or insert the battery).
2. Press the soap issuing button 3-5 times until the clean foam goes.
3. Wipe the nozzle with a napkin - the first portions can be diluted with water.

Check the dispenser model (MJSXJ05YM or MJSXJ08YM)|Turn the device off the power.|Prepare soap with the right viscosity|Wash the tank dry before refueling|Make sure that the sealing gums are in place-->

4. Typical mistakes and how to avoid them?

Even experienced users sometimes make mistakes that lead to breakdowns.

⚠️ Note: if after filling the dispenser gives an error E1 or E2 In the app, it means that the soap is too thick or the air has gone into the pump. Don't ignore the signal, it can burn the engine!

Another common problem is the formation of mold inside the tank, which happens if:

• 🦠 Use soap with organic additives (honey, aloe).
• 💦 Leave the water in the container for a long time.
• ☀️ Store the dispenser in a damp room (for example, a bathroom without ventilation).

To avoid this, once a month, wash the tank with a weak solution of vinegar (1:10 with water) and dry it in air.

5. How do you clean the dispenser so that it lasts longer?

Regular cleaning extends the life of the device by 2-3 times.

Weekly:

• 🧽 Wash the nozzle and body with a wet wipe.
• 🔄 Pump the pump 1-2 times, even if you do not use the dispenser (so that the soap does not dry out in the tubes).

Once a month:

• 🧼 Wash the tank with warm water with a mild detergent (e.g. Fairy).
• 🔍 Check the sealing gums for wear.

Every 3 months:

• 🧪 Disinfect the system with a solution of hydrogen peroxide (3%) or chlorhexidine.
• 🔧 Lubricate moving parts with silicone lubrication (for example, WD-40 Specialist).

⚠️ Warning: Never use abrasive sponges or acetone products to clean, as they will damage plastic and sensors. If you have a stain on your case, remove them with microfiber cloth soaked in a solution of water and vinegar (1:1).

For deep cleaning of the pump (if the soap is not uniform):

1. Remove the tank and disconnect the silicone tube.
2. Wash it under running water, passing water through the pump in the opposite direction.
3. Blow the tube with air (you can use a can to clean the equipment).

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Use only distilled or filtered water to dilute the soap - hard water leaves lime plaque on the pump, which leads to its breakdown.

6. Alternative liquids: can the dispenser be filled with antiseptic or lotion?

Technically, Xiaomi Mijia can produce any liquid with the right viscosity, but not all experiments are safe.

✅ We can use it:

• 🧴 Alcohol-based antiseptic (up to 70%) – but only if it does not contain glycerol (it thickens the liquid).
• 🧴 Lotion for hands - only water consistency, without oils.
• 🧼 Washing liquid (e.g. Fairy) – diluted 1:3.

❌ It's forbidden to fill up:

• 🚫 Shower gels with microbeads - will clog the nozzle.
• 🚫 Body oils or creams form a film on sensors.
• 🚫 Liquids with a pH above 9 (e.g., bleach) – corrodes plastic.

If you want to use a dispenser for a disinfectant, choose products marked "for automatic dispensers." For example, Sanytol or Lizolan are suitable for Mijia, but you need to dilute them according to the instructions.

Important: after using alternative liquids, be sure to rinse the system with clean water, passing it through the pump 5-6 times, this will prevent the mixing of residues and the formation of sediment.

7. Troubleshooting: Dispenser does not work after refueling

If the device behaves strangely after replacing the soap, follow the algorithm:

Problem 1: Dispenser is not turned on

• 🔌 Check the power (outlet, battery).
• 📱 Reboot the device via Mi Home (Settings) → Reboot).
• 🔧 Reset the settings to factory (Reset button at the bottom of the device).

Problem 2: Soap is given out drip or not given out at all

• 💧 Check the fluid level - it's possible the soap doesn't reach the pump.
• 🔄 Pump the pump manually: press the issue button and hold for 10 seconds.
• 🧪 Replace soap with a more liquid one (for example, dilute with 1:1 water).

Problem 3: An error in the appendix E3 or E4

• 📱 Update the Dispenser Firmware in Mi Home.
• 🔧 Disable and reconnect the device to the application.
• 📧 Contact Xiaomi Support if the error is repeated (attach a screenshot).

If none of these things worked, maybe the pump or the sensor failed, and then you can go to the service center, and you can't disassemble the device yourself, because you're not guaranteed to.

8. Lifehacks: how to make the use of the dispenser even more convenient?

Here are some of the unobvious tips that will make life easier:

Voice control

Connect the dispenser to Alice or Google Assistant via Mi Home. Now you can say, "Alice, give me the soap," and the portion will be ready without moving your hands. This is especially convenient when your hands are dirty (for example, after repair or cooking).

2. Automatic dosage on schedule

In the Mi Home app, you can set up the soap output at specific times, for example, to remind children to wash their hands before eating:

1. Open the device in Mi Home.
2. Go to Automation. → Add a rule.
3. Select the trigger Time and specify, for example, 12:00 and 18:00.
4. As an action, select Give away soap.

3. Savings on soap

To reduce the consumption, reduce the portion in the settings:

1. In Mi Home, select a dispenser.
2. Go to Settings. → Size of portions.
3. Set the value of 1 ml instead of the standard 2 ml.

4. Use in non-standard conditions

The dispenser can be adapted to:

• 🍶 Distribution of liquid fertilizer for houseplants (dilute fertilizer with water 1:10).
• 🎨 Dosages of acrylic paints for artists (pre-rinse the system!).
• 🐶 Feeding liquid vitamins to pets (only if the soap is completely washed!).

⚠️ Warning: If used in an unconventional manner, keep an eye on seals, some liquids (such as fertilizers) can erode them. After each alternative use, wash the dispenser with clean water.

FAQ: Frequent questions about the Xiaomi Mijia dispenser