How to properly fill the dispenser for Xiaomi soap: instructions for all models

Xiaomi’s automatic liquid soap dispensers are not just a stylish addition to the bathroom or kitchen, but a complete gadget from the smart home ecosystem. They save washing agent consumption, dose a portion with milliliter accuracy, and can even sync with a smartphone via the Mi Home. However, many users have questions about how to properly refill such dispenser, what soap is suitable, and why the device sometimes refuses to work after refilling.

In this article, we will analyze the step-by-step refueling algorithm for popular models — Xiaomi Mijia Smart Soap Dispenser, Viomi Smart Soap Dispenser and their modifications. Particular attention will be paid to the hidden nuances that the manufacturer does not always specify in the official instructions: choosing the consistency of the soap, cleaning the valve and resetting errors after improper refilling. If your dispenser suddenly stops issuing soap or flashes red, here you will find a solution.

What Xiaomi dispensers are and how they differ

Xiaomi and its sub-brands produce several types of automatic dispensers that look similar, but have key differences in mechanics and functionality.

• 🔹 Xiaomi Mijia Smart Soap Dispenser - the basic version with a touch sensor, a capacity of 300 ml and the ability to connect to the Mi Home.

The main difference between Mijia and Viomi is the type of pump, which is that Viomi uses a plunger mechanism that is less clogged and works better with thick gels, and Mijia has a membrane pump that is sensitive to the viscosity of the fluid, which directly affects the choice of soap and the filling process.

The models also differ in the method of attachment:

• 📌 Mijia - only a desktop version (you can put on the sink).
• 📌 Viomi - there is a version with adhesive base for fastening to the wall.

Before refueling, be sure to check the model — it is indicated on the box or on the sticker under the bottom of the device. The type of dispenser depends on which soap you can use and how you pour it.

What soap can be poured into the dispenser Xiaomi: requirements for consistency

One of the most common misconceptions is that you can put any liquid soap in the dispenser, and in practice, more than 60 percent of the breakdowns are due to the use of the wrong liquid, and the manufacturer recommends the following parameters:

What happens if you pour the wrong soap?

• 🔴 Too thick (for example, cream-gel) - clogs the pump, the dispenser ceases to give out a portion.
• 🔴 Too liquid (diluted with water) - flows through the valve, the device is "spit" with soap.
• 🔴 With abrasive particles (scrabs) - scratches the internal details, leads to breakage.

The best options for refueling:

• ✅ Original Xiaomi soap (sold as a bundle or separately).
• ✅ Liquid soap without silicones and oils (for example, Dove, Nivea in the version for dispensers).
• ✅ Antiseptic gels marked "for automatic dispensers».

⚠️ Warning: If you use soap with fragrances or dyes, flush the dispenser every 2 weeks – these additives settle on the valve and shorten the life of the device.

Step-by-step: how to fill the dispenser Xiaomi Mijia

Xiaomi Mijia Smart Soap Dispenser is the most common model, but its refueling has several nuances.

1. Turn off the dispenser from power (take out the batteries or disconnect). USB-cable, if the model is wired).
2. Remove the top cover - press the latch from behind and pull up.
3. Remove the soap container - it is attached to the clamps, carefully pull up.
4. Wash the container with warm water (if you are refueling for the first time or changing the type of soap).
5. Pour the soap to the mark MAX (usually 250-300 ml. Don't overflow!
6. Set the container back - it should stand with a characteristic click.
7. Close the lid and turn on the power.

After filling, the dispenser may not give the soap the first 1-2 taps, which is normal, since the pump needs to pump air.

Check if the cover is tightly closed.|Make sure the container is in place before clicking.|Reset the dispenser (remove/insert batteries)|Try pouring another soap (perhaps the current one is too thick)-->

It's critical for the Mijia not to use bubble soap (like whipped or frothy soap) and it creates traffic jams in the pump tube. If you accidentally pour this soap, flush the system:

1. Take off the container and pour out the soap.
2. Pour warm water with vinegar (1:1).
3. Press the dispenser 5-6 times to flush the pump.
4. Repeat with clear water.

⚠️ Warning: If the dispenser doesn't work after flushing, check the pump tube for blockages. In the Mijia, it's removable, you can gently blow or clean with a needle.

Features of filling the Viomi Smart dispenser

The Viomi Smart dispenser is more omnivorous, but it has its own tricks, the main difference is the automatic pump cleaning, which starts when the sensor is held for a long time (5 seconds).

• 🔧 Disable the auto-cleaning function in the Mi Home app (Settings section) → Pump cleaning).
• 🔧 Use only the original container – third-party bottles may not work with the level sensor.
• 🔧 Pour soap slowly to avoid bubble formation.

Instructions for filling:

1. Open the lid by pressing the button in front.
2. Take out the container (it is magnetic, attached to the base).
3. Wash it and dry it – the moisture inside can cause a sensor error.
4. Pour the soap to the mark MAX (400 ml).
5. Set the container back - it should "magnetize."
6. Close the lid and wait for the beep (the beep confirms the successful installation).

If the dispenser flashes red after refueling, this means:

• 🚨 Capacity is installed incorrectly - check the magnetic fastening.
• 🚨 Level sensor worked on air bubbles - shake the dispenser or wait until they burst.
• 🚨 Soap too thick – dilute it with distilled water (1:1).

💡

If the dispenser Viomi began to "sneeze" with soap (issues a portion with splashes), wipe the sensor in front with an alcohol napkin - it could remain greasy traces.

Frequent mistakes in refueling and how to avoid them

Even the most experienced users sometimes make mistakes that lead to a breakdown of the dispenser. TOP-5 problems and solutions:

The most insidious mistake is to use glycerin soap, which crystallizes when it dries and cements the pump, and if it's already done, it's only a complete disassembly and cleaning that will help.

Another common problem is that soap leaks through the lid, and this happens if you:

• 💧 The cover is not tightly closed (check the latches).
• 💧 The sealing ring is worn out (can be replaced with a similar one from pharmacy bubbles).
• 💧 Soap too liquid (add a thickener, such as salt).

💡

Never use abrasives or hard brushes to clean the dispenser - they damage the anti-corrosion coating of internal parts.

How to care for a dispenser so that it lasts longer

The average life of the Xiaomi dispenser is 2-3 years, but with proper care, it can work 2 times longer.

• 🧼 Wash the container every 2 weeks – even if you use the same soap, a film forms on the walls.
• 🔋 Change the batteries every 3-4 months (even if the dispenser is still working.
• 🌡️ Do not place the dispenser near the heaters - at a temperature above 40°C soap can be layered.
• 💧 Use distilled water to dilute soap - tap water leaves lime plaque.

For deep cleaning (every 6 months) you will need:

1. Disassemble the dispenser (see the instructions in the spoiler above).
2. Soak parts (except electronics!) in vinegar solution (1:3) for 30 minutes.
3. Wash under running water and dry for 24 hours.
4. Lubricate the sealing ring with silicone lubricant (without Vaseline!).

If you use a dispenser in a public place (such as an office), set the economical consumption mode in the Mi Home app. This will reduce the portion of soap from 1.5 ml to 0.8 ml, which will reduce the frequency of refueling.

⚠️ Note: Do not store the dispenser without soap for more than 2 weeks - seals dry up, and the device begins to leak.

What to do if the dispenser breaks after refueling

If the dispenser stopped working after refueling, do not rush to bring it to the service. In 80% of cases, the problem can be solved by yourself:

• 🔧 Dispenser not switched on: Check the batteries (they must be alkaline, not salt) Clean the contacts in the battery compartment with a wool of alcohol.
• 🔧 Soap fails: Blow the pump tube (can be mouthed or compressed) and check if the air is stuck in the system (shake the dispenser).
• 🔧 Constantly flashing red: Reset settings (press the sensor for 10 seconds). Update the firmware via Mi Home.

If the dispenser gives out soap in jerks or with extraneous sounds, the pump probably broke.

1. Buy a spare part (the pump for Mijia is worth it) ~500 rubles, for Viomi — ~800 rubles.).
2. Disassemble the dispenser and replace the part (video instructions are available on YouTube).
3. If you are not sure about your abilities, contact Xiaomi (usually 1 year warranty).

For models with USB-power (for example, Viomi Smart Pro) check the power supply - it should give exactly 5V/1A. Using smartphone charging can cause pump overheating.

FAQ: Answers to Frequent Questions