Xiaomi Mi Smart Pump 1S
Many users are afraid of damaging the device when disassembling, especially when it comes to warranty seals. However, in most cases, cleaning the pump does not deprive you of the guarantee, as long as the integrity of the enclosure and electronic components is not violated. In this article, a detailed guide with a photo, a list of necessary tools and unique tips for disassembling without damage, which you will not find in standard manuals.
Preparation for disassembly: tools and security measures
Before disassembling, make sure the pump is completely disconnected and dried. Wet contacts or residues of water inside the housing can short circuit when reconnected. If the pump was working in the aquarium, rinse the outside of the pump under running water to remove mucus and microorganisms.
To disassemble Xiaomi 1S you will need:
- ✅ Plastic blade or mediator - for careful slapping of latches (metal screwdrivers can leave scratches).
- ✅ The screwdriver. PH0 or PH1 — for screws on the back cover (size depends on the batch of the device).
- ✅ Tweezers – to extract small parts, such as sealing rings.
- ✅ Silicone lubricant (optional) - for processing rubber seals before assembly.
- ✅ Hair dryer or wipes - for drying internal components.
If you're disassembling the pump for the first time, take a picture of each step on your phone, which will help you get the device back together properly, especially if there are non-obvious mounts inside. Note that some Xiaomi 1S lots use disassembly-proof screws (called "stars"), in which case you will need a special Torx Security T6 or T8 bit.
⚠️ Attention: Do not use WD-40 Or other solvents to clean the interiors! Aggressive chemicals can damage plastic and rubber seals. To remove lime plaque, table vinegar (9%) diluted with water in a 1:1 ratio is suitable.
Removal of the back cover and access to the electronic board
The first stage of disassembly is to remove the back cover, which hides the electronic board and the engine, and there are no visible screws on the Xiaomi 1S box: the lid is attached to the latches.
- Place the pump on a flat surface with the buttons up.
- Insert a plastic blade into the gap between the top and bottom of the case (start at the corner where the power button is located).
- Carefully drive the shoulder blade around the perimeter, alternately snapping the locks. There are 6-8 of them.
After removing the cover, you will see:
- 🔋 Lithium battery (if your model has a battery).
- 🖥️ Electronic board with control chip and Wi-Fi module.
- ⚙️ Engine with rotor attached to the bottom of the body.
If you want to clean the blades, you don't have to touch the electronic circuit board, but if the pump doesn't turn on or is out of order, check the circuit board for oxidized contacts or bloated capacitors, and then gently disconnect the plumes (they're attached to the latches) and remove the circuit board.
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If the latches do not respond, heat the body with a hairdryer (temperature to 40 ° C. The plastic will become softer, and the lid will be removed easier.
Engine disassembly and blade cleaning
The main reason for the drop in pump performance is pollution of the engine blades and shaft.
- Unscrew 3-4 screws that attach the engine to the bottom of the body (they can be hidden under the sticker).
- Carefully remove the engine with the rotor.
- Remove the protective grille from the blades (it is attached to latches or threads).
We can now begin cleaning:
- 🧹 Blades: Remove plaque with a toothbrush dipped in vinegar solution. Use cotton swabs for persistent contaminants.
- 🔄 Engine shaft: swipe it with your hands - if you feel resistance, apply a drop of silicone lubricant.
- 🚫 Do not use abrasives (sandpaper, metal brushes) - they will damage the coating of the blades.
Pay special attention to the magnetic rotor, if it has accumulated metal particles (for example, from corrosion of attachments), remove them with tweezers. The magnetic field of the rotor is sensitive to foreign objects, they can cause vibration and noise when working.
| Detail | Typical pollution | Cleaning method |
|---|---|---|
| Paddles. | Lime plaque, algae, silt | Vinegar 9% + toothbrush |
| shaft | Dried lubricant, rust | Silicone lubricant, cotton swabs. |
| O-rings | Dust, loss of elasticity | Water flushing, silicone lubrication |
| Electronic payment | Contact oxidation, dust | Alcohol + brush, dryer for drying |
⚠️ Attention: If the blades rotate unevenly after cleaning, check the rotor balance. Unsymmetrical mass distribution (for example, due to plaque residues) can lead to increased vibration and wear of bearings.
Remove all contaminants from the blades and shaft | Check the integrity of the sealing rings |Master rubber parts with silicone |Make sure all plumes are connected correctly |Brush the board contacts with alcohol-->
Problems after disassembly: what to do if the pump is not working
Even with a careful disassembly, there can be problems. Let's look at typical situations and how to fix them:
- 🔌 Pump won't turn on: Check if the plumes are properly connected to the electronic board. Check the fuse (if any) on the board - it could have burned out. Make sure the battery (if any) is connected and charged.
- 💦 Water flows: Most likely, the sealing ring is damaged. Replace it or apply a sealant. Check if the screws of the shell are evenly tightened - skewing can lead to cracks.
- 🔊 Increased noise: Maybe the blades are touching the body. Adjust their position. Check if the debris has got into the engine bearings.
If the pump is running but it's not pumping water, the problem may be the blocked rotor. Try to manually turn the blades -- if they're not rotating, re-engineer the engine and make sure the shaft isn't jammed. Sometimes a drop of engine oil (e.g., WD-40 Specialist) on the rotor axis, but don't overdo it -- the excess oil will attract dust.
What if the pump is running after assembly?
Pump assembly: step-by-step instruction and inspection
The Xiaomi 1S is built in reverse order, but there are a few critical points:
- Make sure the sealing rings are uncontorted and can be slightly lubricated with silicone lubrication for better tightness.
- Connect all the plumes to the board before fixing the engine - so it is more convenient to control the process.
- Twisting the screws cross-cross to avoid skewing the body.
- Before final assembly, check the pump without immersion in water: turn it on briefly and listen to the sound. Extraneous noise or vibrations signal a malfunction.
After assembly, perform test inclusion:
- Immerse the pump in a container of water (at least 5 cm deep).
- Enable it through the Mi Home app or button on the case.
- Check: No leaks, steady flow of water (no pulsations), stable operation at all power modes.
If the pump is working properly, dry the outside and set it in a permanent position. If you find a problem, repeat the dismantling and check the problem nodes.
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The most common mistake in assembly is to install the sealing rings incorrectly, and even a slight skew will lead to leaks. Always check their position before fixing the lid.
When the disassembly did not help: alternative solutions
If the pump is still not working properly after cleaning and assembly, perhaps the problem lies deeper.
- 🔄 Reset: In the Mi Home app, find your pump, go to its settings and select "Reset to factory" which will help if the failure is caused by a software error.
- 🔧 Replacement of parts: If the electronic board or engine burned, it is cheaper to buy a new pump - original spare parts for Xiaomi 1S They are not sold separately.
- 📱 Firmware Update: Check in Mi Home if the new version of the software is available for your device. Sometimes bugs are fixed by updates.
- 💡 Use in another mode: If the pump pump pumps water poorly, try switching it to "Maximum Power" mode or connecting it to another power source (for example, to a powerful power supply). USB-hub instead of adapter).
If you suspect that the pump has failed due to a power surge, check the power supply, it should not be bloated, darkened or smell of burning. In case of damage, it can be replaced with a universal one with similar parameters: 5V/2A (for models without a battery) or 5V/1A (for versions with a battery).
When all attempts to fix the pump on your own have failed, contact the Xiaomi service center. Note that the official warranty is only valid if there are intact seals. If you ripped them, the service may refuse to repair them free of charge.