Xiaomi’s smart soap dispensers have become a popular feature of the modern bathroom thanks to their stylish design and automatic foaming. However, regular use of liquid soap and water inevitably leads to contamination of the internal machinery and exterior. If you notice that the device is less foaming, makes extraneous sounds or simply loses its neat appearance, it’s time for maintenance.
Timely cleaning of the Xiaomi Mijia dispenser or Auto Induction not only prolongs the life of the gadget, but also ensures the hygiene of the hand washing process. In this article, we will discuss in detail how to safely disassemble the device, how to wash the motion sensor and how to get rid of the lime plaque that often forms in the nozzle zone.
It's important to understand that the electronics of a smart dispenser are sensitive to aggressive chemistry and direct moisture. Improper cleaning can disable the infrared sensor or damage the pump mechanism. So before starting the procedure, you need to study the device and prepare suitable cleaning products.
Causes of pollution and preparation for cleaning
The main enemy of any plumbing equipment is hard water, which leaves white limestone plaque on the nozzle and inside the foam supply channel. Over time, this plaque narrows the outlet, which leads to a change in the shape of the jet or a complete blockage of the soap supply. In addition, the remnants of the soap compound itself can dry and crystallize, creating stoppers.
Another problem is the contamination of the infrared sensor, and dust, toothpaste splashes, or soap film covering the sensor can lead to false positives or completely ignoring the hands, and periodic cleaning of this area ensures that the automation works smoothly.
⚠️ Warning: Before any manipulations, be sure to remove the batteries from the dispenser. Getting water on the contacts of the battery compartment or internal electronics will lead to irreversible failure of the device.
To clean the body properly, you need a minimum set of tools and tools. Do not use abrasive powders that can scratch the matte plastic of the case. The ideal solution is soft tissues, cotton swabs and a weak solution of citric acid or vinegar to remove mineral deposits.
Prepare the following materials:
- 🧼 Soft microfibre or lilac-free fabric for wiping the body.
- 🥄 Cotton swabs for cleaning hard-to-reach places and sensor.
- 🍋 Citric acid solution (or table cider vinegar) to remove scale.
- 💧 Distilled water for final rinsing of parts.
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Use only distilled water to prepare the cleaning solution to avoid new deposits immediately after cleaning.
Dispenser disassembly and pump extraction
The first stage of maintenance is to disassemble the device properly. Xiaomi dispensers are designed to minimize user contact with electronics, but access to the insides is still necessary for deep cleaning. Start by unscrewing the top cover, which is also a soap tank.
Once the tank is removed, you'll see the pump itself inserted into the neck, some models will have it fixed by a thread, some models will have it fixed by a tight fit, carefully remove the pump mechanism, trying not to splash the residue of soap, and if the device has been left unused for a long time, the mechanism may be "stiff" because of the dried soap.
What to do if the pump does not turn out?
Separate the fluid intake tube from the main mechanism, often inside and at the end of this tube, the bulk of the contaminants accumulate, wash the tube under running water, using a bottle brush if the diameter allows, or simply blowing it.
It is important to handle the pump motor carefully, and although it is protected by the housing, direct pressure from a jet of water on the joints of parts can lead to corrosion of the contacts, and wipe the outside of the mechanism with a wet, well-pressed cloth.
☑️ Dispenser disassembly procedure
Lime plaque removal and canal washing
The most time-consuming part of the process is removing lime deposits. The white plaque you see on the nozzle is calcium carbonate, which dissolves perfectly in a low-acid environment. To prepare the cleaning solution, dilute 1-2 teaspoons of citric acid in a glass of warm water.
Lower the bottom of the pump (suction tube and nose) in the prepared solution for 15-20 minutes. Do not immerse the entire pump in the liquid, especially if the lower part shows electronic components or motor.
After soaking, press the feed mechanism several times (manually if the design permits, or briefly inserting batteries for test feed) to clean the internal channels with a stream of solution. Then be sure to rinse all the parts with clean water to neutralize the acid.
| Type of pollution | Recommended remedy | Time of exposure | Tool. |
|---|---|---|---|
| Lime plaque | Citric acid solution | 15-20 minutes. | Soaking container |
| Dried soap | Warm water | 5-10 minutes | Cotton swabs |
| Fat film | Weak soap solution | No soaking. | Microfiber |
| Dust on the sensor | Dry fabric | Instantly. | A hairless napkin |
If the plaque is very strong and does not go away after the first soaking, the procedure can be repeated, but do not keep the plastic in an aggressive environment for too long, as this can lead to clouding of transparent parts or the destruction of rubber seals.
Cleaning the motion sensor and body
The body of Xiaomi dispenser is usually made of quality plastic with a pleasant touch coating.To keep it looking, avoid using alcohol, acetone or solvents that can dissolve the top layer of paint or make the plastic sticky.
Pay special attention to the infrared sensor area. This is the eye of your device. If it's contaminated, the dispenser will not work properly. Wipe the area with a dry cotton swab and then a slightly damp microfiber. Make sure there are no cotton villi left on the surface.
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The quality of the automatic dispenser depends on the purity of the infrared sensor by 90%, and regularly wipe this area with a dry cloth.
To remove persistent spots on the case, you can use a special means to clean plastic or wet wipes for office equipment. The main rule is to prevent the fluid from draining into the case through slots or screw holes.
After wet cleaning, be sure to wipe all surfaces dry. Moisture residues can cause divorces or, in the worst case, provoke oxidation of contacts if water does penetrate.
Cleaning errors and precautions
Many users make the mistake of trying to flush the dispenser under a strong pressure of tap water, which is absolutely impossible. Water pressure can drive moisture deep inside the electronic unit, which will lead to a short circuit on the next installation of the batteries.
⚠️ Warning: Never wash the dispenser in the dishwasher.High temperature and aggressive detergents will warp plastic parts and damage electronics.
Another common mistake is to use undiluted vinegar or strong acids. Concentrated acid can damage the rubber pads that keep the system tight, and as a result, the dispenser will start sucking air instead of soap, and the foam will cease to form.
Also, you should not disassemble the electronic module itself, unless there is a clear need for this (for example, replacing a burned board), Violation of the factory seal or sloppy assembly can lead to loss of warranty and unstable operation of the device.