Xiaomi’s robot vacuum cleaners are reliable cleaning assistants, but even they require periodic maintenance. One of the most common problems is jamming or wearing the wheels, leading to navigation errors, slippage or a complete stop of the device. Removing the wheel may be necessary to clean, replace the rubber lining or repair the drive – but how do you do this without damaging the body?
In this article, we will discuss the step-by-step dismantling process on popular models (Mi Robot Vacuum-Mop 2 Pro, Dreame Bot). Z10 Pro, Viomi V3 And then we'll list the tools that you need, and we'll tell you what's common, and we'll tell you how to tell the difference between a removable wheel and a non-removable wheel, and when to go to the service center.
⚠️ Important: Xiaomi's wheel design differs depending on the year of production and series. For example, models up to 2020 often used metal axles, and new ones - plastic latches.
1.Preparation: security tools and measures
Before disassembling a robot vacuum cleaner, make sure you have everything you need. The wrong tool can damage plastic parts or mounts, and the absence of an antistatic bracelet (for models with electronic sensors in wheels) can disable sensitive components.
Here is the minimum set you will need:
- ✅ Plastic blade (or mediator) - for careful slapping of latches.
- ✅ Cross screwdriver (usually) PH0 or PH1) — hull-rotor.
- ✅ Tweezers – to extract small details (springs, washers).
- ✅ Silicone lubricant (e.g, WD-40 Specialist) - for axle treatment after cleaning.
- ✅ Multimeter (optional) – to check the integrity of the wiring sensor wheel.
⚠️ Note: If your vacuum cleaner is warranty, self-repair can invalidate it. In Xiaomi Mi Robot Vacuum-Mop P and newer models, the wheels are often soldered to the control board - their replacement requires soldering.
2.How to determine that the wheel should be removed: symptoms of malfunction
Sometimes it's just a simple cleaning or rebooting of the device, and let's look at the key signs that indicate the need to disassemble:
| Symptoms. | Probable cause | Should I take off the wheel? |
|---|---|---|
| The robot moves in a circle or zigzag | Wear of rubber lining, getting garbage into the mechanism | Yes, for cleaning/replacement. |
| Wheel Fault Error (code 9, 10 or 12) | Problem with Hall sensor or wire break | Yes, for diagnostics. |
| The wheel is not rotating, but the sound of the motor is heard. | Bearing jamming or gear breakage | Yes, for repairs. |
| The robot "jumps" when moving | Deformation of the rubber rim or axle backlash | Yes, for a replacement. |
🔍 Diagnostic advice: Before disassembling, check if the wheel is blocked by a foreign object (strings, hair, carpet fiber). To do this, turn the vacuum cleaner over and manually scroll the wheel. If it rotates tightly or with a crunch, the problem is mechanical.
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If the robot gives you a wheel error, but visually everything is fine, try resetting to the factory settings through the Mi Home app. Sometimes a firmware failure simulates hardware failure.
3. Step-by-step instructions: how to remove the wheel on different models
The dismantling process depends on the design of the wheel module. We will break down the instructions into three types of mounts that are found in Xiaomi vacuum cleaners:
- Type 1: Wheel on latches (Mi Robot models) 1S, Viomi V2).
- Type 2: Wheel on screws (Dreame Bot models) L10 Pro, Mi Robot Vacuum-Mop 2).
- Type 3: Wheel with integrated sensor (Xiaomi Mi Robot Vacuum-Mop P and newer models).
📌 General rule: Start disassembling by turning off the vacuum cleaner (take out the battery or disconnect the power plug (14.4V) Residual current can damage electronics when short circuit.
☑️ Preparation for wheel removal
Type 1: Latch wheel (without screws)
This is the easiest option that comes with budget models. You don't need screwdrivers, just a plastic blade and tweezers.
- Carefully tuck the decorative wheel lining with a blade. It is attached to 2-4 plastic latches.
- Take the pad off and put it aside, and underneath it you'll see a metal or plastic axis.
- Pull the wheel over yourself with a little effort, it should come off the axle. If you can't, just spin it slightly left and right.
- After removing, check the bearing (ball or bushing) for dirt. If necessary, wash it with alcohol.
⚠️ Attention: In Viomi models V3 There might be a spring-loaded hold under the wheel -- don't lose it when you disassemble it.
Type 2: Wheel on screws (with partial disassembly of the body)
A more complex version that requires precision, where the wheel is attached to the chassis frame through 1-2 screws.
- Turn over the vacuum cleaner and find the wheel fasteners (usually hidden under the rubber lining).
- Unscrew the screws with a screwdriver. PH0 Take the wheel off the axle carefully. Z10) You will have to remove the side cover of the body first.
- Disconnect the sensor connector (if any) - it can be glued or fixed by a latch.
- Check the gear drive for wear, if the teeth are worn, you'll need to replace the entire module.
What do I do if the screw is "stuck"?
Type 3: Wheel with integrated sensor (for advanced users)
Premium models (Xiaomi Mi Robot Vacuum-Mop P, Dreame Bot) X30) The wheels are equipped with Hall sensors for precise motion control, where dismantling requires a soldering iron and electronics skills.
- Remove the wheel according to the instructions for the Type 2 (see above).
- Seal the sensor wires off the control board (usually marked in red and black).
- Replace the wheel or sensor, then solder the wires back, observing polarity.
- Check the performance with a multimeter: the resistance of the sensor should be within 1-10 kOhm.
🔧 Advice from the masters: If you are not sure about your soldering skills, you should contact the service. Incorrect connection of the sensor can cause a calibration error, and the robot will "go crazy" when moving.
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In 90% of cases, the problem with the wheel is solved by cleaning or replacing the rubber lining. Full replacement of the module is required only in case of mechanical failure (broken axle, gear).
4. Cleaning and maintenance of wheels: how to extend their service life
Even if the wheel is working normally, a preventive cleaning every 2-3 months will prevent premature wear.
- 🧹 Remove hair and thread from the wheel axis after each cleaning. Use tweezers or toothpicks.
- 💧 Rub the rubber lining with a wet cloth with soapy solution (without abrasives!).
- 🛢️ Lubricate the axis with silicone lubrication (don’t use oil-based oils – they corrode plastic!).
- 🔍 Check the backlash: if the wheel is wobbling, tighten the screws or replace the fixing washer.
📊 Statistics from service centers: 70% of wheel failures in Xiaomi vacuum cleaners are associated with getting hair into the mechanism. Regular cleaning reduces the risk of jamming by 85%.
⚠️ Warning: Never use acetone, gasoline or solvents to clean your wheels, which break down rubber and plastic. Also avoid heavy pressure when wiping so as not to deform the rim.
5 Replacement of rubber wheel lining: when and how to do it
The rubber part of the wheel (rim) wears out over time, especially if the robot often drives on carpets or laminate.
- 🔄 Wheel slips on smooth surfaces.
- 📉 The robot is worse overcomes the thresholds (slows clearance).
- 🎵 There is a characteristic “whistling” when moving.
How to replace the pad:
- Remove the wheel according to the instructions above (depending on the model).
- Put a flat screwdriver on the old pad, and it's usually on glue or plastic latches.
- Clean the rim of the wheel from the residues of glue with alcohol.
- Apply a thin layer of superglue (such as Loctite 401) to a new pad and press it tightly against the wheel.
- Let the glue dry for 1-2 hours before placing the wheel back.
💡 Lifehack: If the original pad isn't completely worn yet, but it's lost its grip, try swapping it.
6. Frequent mistakes when removing wheels and how to avoid them
Even experienced users sometimes make mistakes that lead to additional breakdowns.
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Use of a metal screwdriver for latching | Scratches on the body, broken fixtures | Use only plastic shoulder blades |
| Application of force when removing the "stammered" wheel | Axle thread failure or gear failure | Handle the axis WD-40 wait |
| Incorrect installation of the Hall sensor | Mistakes in navigation, movement in a circle | Check polarity when soldering |
| Loss of spring or washer during disassembly | Luft wheels, knocking while moving | Photograph the disassembly process |
🔨 Case in point: One user of the Mi Robot Vacuum-Mop 2 Pro forgot to plug the sensor connector when changing the wheel, and the robot began to "think" that the wheel was not rotating, and refused to move, giving an error. 0x0A. I had to re-examine.
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If the robot behaves strangely after assembly (spinning in place, not responding to commands), the first thing to do is check the connection of the wheel sensors. In 60% of cases, the problem is in them.
7.When to contact the service: signs of serious breakdowns
Not all wheel problems can be solved by yourself, but here are the signals that it is time to bring a vacuum cleaner to the workshop:
- ⚡ Sparkling or smell of burning when working a wheeled motor is a sign of short circuit.
- 🔊 Screaming or metal clang - possible failure of gear gear gear gear gear reducer.
- 📵 The wheel spins in jerks, although it doesn’t block anything – the problem with the motor driver on the board.
- 💻 Wheel Motor Error Error Won't Disappear After Cleaning and Rebooting.
💰 Cost of repair: In service centers Xiaomi replacement of the wheel module costs 1,500-4000 rubles (depending on the model); replacement of a separate gear or sensor is cheaper (from 800 rubles.
⚠️ Note: Dreame Bot models with the system LDS-Incorrect assembly of wheels can cause calibration to be delayed after repair, it may be necessary to flash through service software.