Why Xiaomi’s soap dispenser cap doesn’t open and what to do about it
Xiaomi’s automatic soap dispensers (Mi Smart Soap Dispenser, Mijia Automatic Soap Dispenser or Redmi Smart Soap Dispenser) are designed for convenience, but sometimes their caps become a puzzle. Users are faced with the fact that the plastic hatch is not pressable or shiftable – especially after a long downtime or if the device has been in a wet environment, the reason most often lies in the sticking mechanism, deformation of the plastic or improper opening technique.
In this article, we'll look at all the proven methods, from basic (which work 80% of the time) to radical (disassembly of the case). Importantly, if the dispenser is warranty, first try the methods without opening, so as not to lose the right to service. And if the lid opened with difficulty, after filling the tank with soap, be sure to wipe the thread and seal with a dry wipe: this will prevent re-sticking.
Method 1: Standard Instructional Opening (for most models)
Xiaomi’s official instructions suggest that the dispenser cover opens by pressing the side latches and then shifting upwards, but many users miss key nuances:
- 🔹 Right position: the dispenser should be on a flat surface, not on its side, otherwise the latches can be blocked under its own weight.
- 🔹 Pressing force: do not press hard enough – a fairly easy but confident two-finger press on the marked area (usually indicated by arrows or dots).
- 🔹 Direction of movement: after pressing the lid should not be pulled on itself, but moved strictly upwards (perpendicular to the body).
If the latches do not bend even with the right press, try the following:
- Place the dispenser under hot water (not boiling water!) for 1-2 minutes - this will soften the plastic.
- Wear rubber gloves for better grip.
- Press the latches not with your fingers, but with a blunt object (for example, the back of a spoon), evenly distributing the force.
Make sure the dispenser is vertical |
Check for arrows or marks on the cover |
Press the latches simultaneously, not alternately |
Move the lid upwards, not pulling on yourself-->
Method 2: Unlocking the stuck latches (if the lid does not lend itself)
If the standard method didn't work, the problem is probably sticking to the mechanism.
- 💧 The soap solution hits the latches (especially if liquid soap with glycerin was used).
- 🌡️ Temperature changes that cause plastic to deform.
- ⏳ Long downtime of the device without use.
To unlock the latches:
⚠️ Warning: Do not use sharp objects (knives, screwdrivers) - this will damage the plastic and cancel the warranty.
| Method | Tool. | Step-by-step instruction |
|---|---|---|
| Softening plastic | Fen, hot water. | Heat the latches with a dryer (warm air mode) for 30 seconds, then try to open. The alternative is to place the dispenser in warm water (no higher than 50 ° C) for 1-2 minutes. |
| Penetration into the gap | Plastic card, mediator | Carefully enter the card into the gap between the lid and the body at the latch, swaying slightly to weaken the fixation. |
| Removal of soap deposits | Cotton sticks, alcohol | Soak the stick in alcohol and wipe the latches outside. If the lid opens a little, clean the mechanism from the inside. |
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If the latches still do not respond, try to slightly tap the lid with your palm on the side - vibration sometimes helps to move the stuck mechanism.
Method 3: Disassembly of the body (if the lid is broken or jammed)
If previous methods have failed and the dispenser is no longer warranty, partial disassembly remains, which is suitable for Mi Smart Soap Dispenser 1S, Mijia Automatic Soap Dispenser Pro and similar models. Importantly, after disassembly, you may need to replace the O-ring (MDZ-01-DM for most models).
You will need to disassemble:
- 🔧 Cross screwdriver (size) PH0 or PH1).
- 🧲 Magnetic screwdriver or tweezers (so as not to lose small screws).
- 📸 Phone for photographing the process (useful when reassembling).
Step-by-step:
- Turn over the dispenser and unscrew 3-4 screws on the bottom cover (they can be hidden under rubber legs - gently tuck them).
- Remove the bottom panel and disconnect the battery (if it is removable).
- Relax the two screws that lock the upper mechanism (usually located on the sides under the cover).
- Carefully lift the top of the body - the dispenser cover must now separate without resistance.
What do I do if the screws are stuck?
⚠️ Warning: When disassembling, do not touch the contacts of the motion sensor (if you have one in your model) - static electricity can cause it to fail. After assembly, check the sealant's tightness, otherwise the soap will leak.
Method 4: Alternative methods for stubborn covers
If none of the methods worked, and there is no desire to disassemble the dispenser, try these non-standard techniques:
- ❄️ Freeze: Place the dispenser in the freezer for 15 to 20 minutes. The plastic will shrink, and the latches may loosen the grip.
- 🧴 Lubricant: Apply silicone lubricant (not oil!) on the latches and wait 5 minutes. Silicone won't damage plastic and leaves no traces.
- 🔊 Vibration: Put the dispenser on a working washing machine (in spin mode) or use a vibrator. Vibration sometimes helps to move the stuck parts.
If the lid is open, but it jams again when it closes, the problem may be in the deformed seal.
- Put a thin strip of food film under the seal (this will reduce friction).
- Lay the seal with Vaseline (not technical!).
Frequent mistakes when opening the lid (and how to avoid them)
Many users make the problem worse by repeating the same mistakes.
| Mistake. | Effects of consequences | The right decision |
|---|---|---|
| Using a knife or screwdriver to smack the lid | Scratches, chipped plastic, latch damage | Use a plastic card or mediator |
| Applying force in the wrong direction (pulling on yourself instead of shifting up) | Breakdown of the lid anchorages | Follow the arrows on the body or instructions |
| Attempt to open the lid when the dispenser is lying on its side | Jamming of the mechanism due to displacement of internal parts | Always keep the dispenser vertically. |
| Ignoring cleaning of seal after filling with soap | Sticking the cover at the next opening | Wash the thread and seal with a dry wipe |
Another common problem is tugging the lid when you close, and many users put too much effort into thinking that it's going to be better sealed, which actually deforms the seal and causes the seal to stick, and the lid has to be closed with a little push until you click, no more.
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If the dispenser lid is difficult to open every time, the problem is not the opening technique, but the wear of the seal or the deformation of the plastic, in which case only replacing parts or buying a new dispenser will help.
Prevention: How to prevent the lid from sticking in the future
To avoid the problem again, follow these rules:
- 🧼 Type of soap: Use only liquid soap without abrasive particles (e.g. Xiaomi Mijia Liquid Soap).Gel products or scrubbing soap clog the mechanism.
- 💧 Filling level: Do not pour soap to the top – leave 5-10 mm to the edges so that when closing the lid, there is no excessive pressure.
- 🧽 Clean: Once a month, wash the tank with warm water and dry it in an upside down form for 24 hours.
- 🌡️ Storage conditions: Do not leave the dispenser in direct sunlight or near heat sources (e.g., on a battery).
If you use a dispenser in a high-humidity bathroom, after each filling, wipe the body and cover with a dry microfiber cloth, which will prevent condensation from forming inside the mechanism.
For models with a touch dispenser (for example, Mi Smart Soap Dispenser Pro), additionally check the cleanness of the infrared sensor. Pollution can lead to false positives and increased wear of the cover mechanism.