Replacement of soap in the dispenser Xiaomi Mijia: instructions for all models

Xiaomi Mijia’s automatic soap dispensers have become an integral part of modern bathrooms and kitchens. These compact devices not only save cleaning costs, but also add convenience to everyday life. However, even such advanced gadgets require maintenance — in particular, timely replacement of liquid soap or gel. If you are experiencing this procedure for the first time or want to avoid typical mistakes, this article will help you understand all the nuances.

The manufacturer offers several modifications of dispensers, from simple mechanical to smart models with connection to the Mi Home application. Despite the external differences, the principle of replacing detergent is similar, but there are important features. 1S There's a liquid level sensor that can get lost when you're not refueling properly, and the base version of the Mijia Soap Dispenser (without the index) doesn't have a battery charge indication, which requires additional monitoring.

In this article, we will detail the soap replacement process for all popular dispensers, point out common errors and give recommendations for choosing the right detergents, and learn how to reset the device errors if it stops working after refueling, and how to extend the life of the gadget.

What models of Xiaomi Mijia dispensers exist and their features

Before you start replacing soap, it’s important to determine which dispenser model you’re holding, which is the nuance of maintenance and possible problems, and Xiaomi has released several modifications to date:

• 🔹 Mijia Automatic Soap Dispenser (basic version) - mechanical device without connection to the application, runs on batteries AAA. Volume of reservoir: 300 ml.
• 🔹 Mijia Automatic Soap Dispenser 1S — Smart version with Mi Home support, fluid level sensor and charge indication. Volume: 320 ml.
• 🔹 Mijia Smart Soap Dispenser (touch-controlled) is a premium model with touch panel, dosage adjustment and backlighting. Volume: 400 ml.
• 🔹 Mijia Mini Soap Dispenser - compact version for travel, volume of 150 ml, without automatic feeding.

The main difference between smart models (1S And Smart, from the base, you have electronic control and sync with your smartphone, so you can track the soap levels remotely, adjust the portion size, and get notifications that you need to refuel, but you also need to be careful about refueling these devices. sensors can falsely trigger foam or air in the tank.

If you are not sure about your dispenser model, pay attention to the following details:

• 📱 Availability of the button synchronization with the application (only in smart versions).
• 🔋 Type of battery: AAA (base model) or built-in battery (premium version).
• 💡 Backlight or display (only in Smart Soap Dispenser).

What soap is suitable for Xiaomi dispensers: requirements and recommendations

Not all liquid soaps or gels are suitable for automatic dispensers Xiaomi Mijia. Using inappropriate means can lead to clogging of the mechanism, false alarms of sensors or even failure of the pump.

• 🧼 Consistency: liquid should be medium viscosity, too thick gels (for example, for showers) or liquid soap with large particles (scrabs) are not suitable.
• 💧 Composition: Avoid products with abrasive particles, large air bubbles or gel-like inclusions.
• 🔋 pH level: Optimally neutral soap with pH 5.5-7.0. Alkaline or acidic agents can damage plastic parts.
• 🌿 Environmentally friendly: aggressive chemical components (e.g. chlorine) reduce the life of seals.

Best for Xiaomi dispensers are suitable:

• 🧴 Liquid hand soap marked "for dispensers" (e.g. Dove, Lux Soft Touch).
• 🧻 Antibacterial gels without alcohol (alcohol products can corrode gaskets).
• 🚿 Special liquids for automatic dispensers (sold in smart equipment departments).

⚠️ Note: Never use dishwashing products in Xiaomi Mijia dispensers (for example, Fairy or other products). AOS). Their high foam-forming ability will lead to clogging of the valve and false alarms of the sensor.

💡

If you use concentrated soap, dilute it with distilled water in a 1:1 ratio, which will reduce the load on the mechanism and prevent the formation of precipitation.

Step-by-step: how to replace soap in the dispenser Xiaomi Mijia

The process of replacing the soap in the dispenser varies from model to model, but the general scheme is the same. Below is a general guide, taking into account the nuances for each version (1S or Smart, before refueling, disconnect it from the Mi Home app to avoid false notifications.

1. Opening of the tank

In most models, the soap tank is located at the top of the device, so that you can open it.

• 🔄 Basic model: Turn the top cover counterclockwise before clicking.
• 📱 Mijia 1S: Press the unlock button (located at the back) and pull the lid up.
• 🖥️ Smart version: swipe your finger on the touch panel up, then pull the lid.

If the lid doesn't lend itself, don't force it -- check if it's blocked by the residue of dried soap, in which case, gently clean the edges with a napkin soaked in warm water.

2. Removal of residues of old soap

Before refilling a new soap, it is recommended to wash the tank, especially if:

• 🔄 You change the type of product (for example, from soap to gel).
• 🧼 Previous soap had a thick consistency or sediment.
• ⚠️ The dispenser gave a "low liquid" error despite the presence of fluid.

For flushing:

1. Remove the residue of soap from the tank.
2. Wash it with warm water (do not use detergents!).
3. Dry in the air for 10-15 minutes or get wet with a napkin.

⚠️ Warning: Do not use hot water for washing – this can warp plastic parts, especially in models with electronic sensors.

3.Purging the new soap

When filling, follow these rules:

• 📏 Do not pour soap above the maximum mark (usually 250-300 ml depending on the model).
• 💧 Avoid air – pour the liquid slowly, along the wall of the tank.
• 🔄 After refueling, close the lid before clicking (in smart models, wait for the sound signal).

For models with level sensor (1S and Smart) after refueling, calibration may be required:

1. Turn on the dispenser (insert batteries or connect to the network).
2. Press and hold the reset button (located on the bottom panel) for 5 seconds.
3. Wait for the indicator to flash - this is a signal of successful calibration.

Common Mistakes When Replacing Soaps and How to Avoid Them

Even in a simple procedure like changing a soap, users often make mistakes that cause the dispenser to malfunction, and here are the most common ones and ways to prevent them:

• 🚫 Soap overflow: If you pour the liquid above the maximum mark, it can leak into the electronic unit (in smart models) or clog the valve. Always leave 5-10 mm of free space.
• 🌀 Using a thick gel: these products clog the pump and cause it to overheat. If the gel is too viscous, dilute it with distilled water.
• 🔋 Ignoring sensor errors: If the smart model shows "low liquid" immediately after refueling, then there is air in the tank.
• 🧴 Mixing different types of soap: residues of the old remedy can react with the new one to form a sediment. Always flush the tank when changing the type of liquid.

Another common problem is that the motion sensor is falsely triggered after refueling, and this is because soap foam hits the infrared sensor to fix the problem.

1. Wipe the sensor area (usually located in the front of the body) with a dry wipe.
2. Reboot the device (remove and insert batteries or press the reset button).
3. If the problem persists, reduce sensor sensitivity in the Mi Home app settings (available for models) 1S Smart).

⚠️ Attention: If the dispenser starts to make loud buzzing sounds after the soap is replaced, it is a sign of a clogging of the pump. Immediately turn off the device, flush the tank and the soap supply tube. Using the dispenser in this state will lead to overheating and breakage.

💡

The most common reason for malfunctioning Xiaomi Mijia dispensers is the use of inappropriate detergents. Always check the consistency and composition of the soap before refueling.

How to Reset Dispensing Mistakes After Replacing Soap

If the dispenser is not behaving properly after the soap has been replaced (it does not give out a portion, the error indicator flashes or does not respond to movement), a reset may be required.

After reset, you may need to re-sync with the Mi Home app (for smart models).

1. Open the app and go to the Devices section.
2. Click Add Add the device → Smart home. → Soap dispenser.
3. Follow the instructions on the screen (usually you need to press the button on the dispenser to pair).

If the reset didn't help, check:

• 🔋 Battery charge (in smart models with a low charge can be confused settings).
• 📶 Stability of Wi-Fi connection (for models with an application).
• 🛠️ Clean battery contacts (oxidation can cause failures).

💡

If the dispenser after reset gives an error "E1" or "E2", This indicates a problem with the pump. Try flushing the system: put warm water in the tank, turn on the dispenser and let it pump the liquid 3-4 times.

Care for the dispenser: how to extend the service life

To dispenser Xiaomi Mijia served a long time without breakdowns, it is enough to follow a few simple rules of care:

• 🧼 Regular cleaning: wash the tank and pump with warm water at least 1 time per month:

Battery control

AAA

Storage conditions

Checking seals

Xiaomi

For models with motion sensor (1S Smart and additionally recommended:

• 📱 Update the firmware through the Mi Home app (developers regularly release patches to improve the performance of sensors).
• 🎯 Adjust sensor sensitivity in settings (too high sensitivity leads to false positives).
• 🔄 Periodically test the operation of the sensor: swipe your hand at a distance of 10-15 cm from the sensor - the device should react within 1 second.

In the basic model, the sound cannot be turned off - it is laid in the firmware.