Xiaomi Roborock vacuum cleaners are some of the most popular cleaning devices in Russia, but even these require periodic maintenance. Over time, dust accumulates inside, brushes clog, and the battery loses capacity. S7, S8 Pro can be done in 20-40 minutes if you know the nuances of the design and avoid typical errors.
In this article β Step-by-step analysis with photos, unique mounting schemes for different models (including Roborock). S7 MaxV Ultra, and warnings about the risks of sensor damage and board damage, we won't advise "screwing the screws carefully" -- instead, we'll show you what tools are really needed, where the latches are hidden, and how not to break clips when removing the top cover.
If your vacuum cleaner is getting worse at charging, buzzing or not responding to buttons, 80 percent of the problems are solved by cleaning or replacing the consumables, but you have to take it apart properly. Let's start with preparation.
Preparation for disassembly: tools and security measures
Before you start a screwdriver, make sure you have everything you need, and without the right tools, you risk damaging the plastic latches or ripping the screws off.
- π§ Cross screwdriver (PH0 or PH1 β It depends on the model; Roborock S8 Pro Ultra screws are smaller).
- π Plastic mediator (or guitar) to disconnect latches.
- π§² Magnetic mat or screw container (so as not to lose small details).
- π Loop or flashlight β some screws are hidden under stickers.
- π§΄ Isopropyl alcohol (to clean contacts if vacuum cleaner is not turned on).
β οΈ Warning: If your Roborock is warranty-free, the disassembly will cancel it. The manufacturer recommends that you contact the service center for any malfunctions. Also, do not disassemble the vacuum cleaner immediately after cleaning - let it cool for 1-2 hours to avoid deformation of the plastic.
Before starting work, it is mandatory to:
- Turn off the vacuum cleaner with the power button.
- Remove the battery (if possible) or disconnect the terminals.
- Remove the side brush and garbage container.
- Place the device on a soft surface (towel) so as not to scratch the body.
π‘
If the screws don't unscrew, don't apply force - most likely they're under a sticker or hidden by a plug. S7 MaxV Ultra two screws hidden under rubber legs.
Removing the top cover: where the latches are hidden
The most important step is to remove the top panel, as it is easy to break plastic clips. S4) The lid is mounted on 4 to 6 screws and 8 to 10 latches. Here's how to do it right:
- Unscrew all visible screws on the bottom of the case (usually 4 pieces in the corners). S8 Pro Ultra added two screws under the back cover of the base.
- Carefully apply the cover to the mediator on the back (where the power button is) and start at the corner and gradually lead along the seam.
- Listen to the clicks, it's the sound of the latches coming off. If the lid doesn't respond, don't pull it with force!
- Lift the lid to 45.Β° and disconnect the display plume (if any). S7 MaxV plume is fastened by a latch - it must be bent upwards.
β οΈ Note: Models with laser rangefinder (LDS) There's an extra power connector on the lid, and if you don't turn it off before you take it off, you can damage the contacts, and the connector is usually white, and it's next to the fan.
βοΈ Check before removing the lid
If the cover is not removed, check:
- π Stickers on the case β screws are often hidden under them (especially in Roborock). S5).
- π§ Back β sometimes there is an extra screw under the rubber plug.
- π± The instructions for your model are: S8 The Pro Ultra mounting system is different from S7.
Removing the battery: how not to damage the contacts
The battery is the most expensive part of the vacuum cleaner, and it is easy to damage if it is not carefully removed. The Roborock models use lithium-ion batteries at 5200-6,400 mAh, which are attached to:
- 2-4 screws (y) S7 And newer, on the latches);
- a power connector with a fixator;
- Thermosensor (in some modifications).
Procedure:
- Disconnect the main power connector (usually black or red) by pulling the plastic pad, not the wires!
- If there is an additional sleeve (y) S8 Pro, turn it off with tweezers.
- Unscrew the battery mount screws (if any) or gently press the latches on the sides.
- Remove the battery by holding it by the edges β do not touch the contacts with your bare hands (the risk of short circuit).
β οΈ Attention: If the battery is swelling, don't try to puncture or bend it. Lithium-ion batteries can ignite if damaged:
Place the vacuum cleaner in a non-combustible container (such as a metal bucket), take it to a service center or recycling point, and do not store it near flammable objects.
How to check the status of the battery without disassembly?
| Roborock model | Type of battery | Capacity (mach) | Firming |
|---|---|---|---|
| S5/S5 Max | Li-ion | 5200 | 4 screws + plug-in |
| S6/S6 Pure | Li-ion | 5200 | 2 screws + latch |
| S7/S7 Pro | Li-ion | 6400 | Latches + heat-sensor |
| S8 Pro Ultra | Li-ion (fast charging) | 6400 | Latches + plume |
Disassembly of the main unit: access to the engine and sensors
Once you remove the lid and the battery, you get access to the vacuum cleaner's heart, the main engine, the control board and the sensors, so it's important not to confuse the connectors and not to damage the wires.
- π The main engine is mounted on 3-4 propellers. S8 A second motor for the vibration mop was added.
- π‘ The control board -- usually located under a metal screen -- leaves the plumes to the buttons, the sensors, the Wi-Fi module.
- ποΈ Sensors: LDS (laser rangefinder) β spinning βturretβ on top; Optical sensors β under the front bumper; Gyroscope β on the main board.
- π Fan and filters - clogged with dust most often.
To get to the engine:
- Disconnect the power connectors from the board (take a picture of their location!).
- Unscrew the engine mount screws (usually they are under the cross screwdriver).
- Remove the metal fan casing - it may be on the latches.
- Remove the engine with the turbine. Clean the blades of dust with a soft brush (do not use metal objects!).
π‘
If the vacuum cleaner is less absorbable, 90 percent of the time, the problem is a clogged filter or turbine, and you can clean it without completely disassembling it, so you just take off the back cover and blow it with compressed air.
β οΈ Warning: Do not blow into the fan with your mouth when cleaning - saliva can get into the contacts and cause corrosion. Use a can of compressed air or a vacuum cleaner in blowing mode.
If you need to get to the control board:
- Turn off all the plumes (they are usually marked: MOTOR, LDS, BUTTON).
- Unscrew the screws of the board attachment (sometimes they are hidden under a sticker with a serial number).
- Carefully raise the fee - there may be wires glued to the case under it.
Cleaning and replacing brushes, wheels and filters
Consumables are things that require regular replacement or cleaning, and the table below shows the lifespan and signs of wear and tear of the main components:
| Component | Term of service | Signs of wear and tear | How to clean/change |
|---|---|---|---|
| Sidebrush | 6β12 months | Hair loss, crackling when rotating | Remove the latch, wash with water. |
| Main brush | 12β18 months | Brushed bristles, coiled hair. | Unscrew 2 screws, clean with a knife |
| HEPA filter | 3β6 months | Gray color, reduced suction power | Wash with water, dry for 24 hours |
| Wheels. | 2β3 years | Crackling, uneven movement | Remove the axle, grease with silicone lubricant |
To replace the main brush:
- Turn the vacuum cleaner over and remove the protective cover (it is on the latches).
- Unscrew two screws of fastening of brush (sometimes they under hexagon).
- Remove the brush and clean the shaft of the coiled hair, and it's convenient to use pliers or tweezers.
- Install a new brush and lock it with screws. Make sure it rotates freely!
β οΈ Warning: If after replacing the brush, the vacuum cleaner emits grinding or vibration, check:
- Did the debris fall between the shaft and the hull?
- Are the rings properly installed?
- Is it not a snare (and a snare) that is a snare?
π‘
To clean the filter HEPA Use warm water with soap, but don't rub it with a hard brush, it will damage the micropores. Dry the filter for at least 24 hours in a ventilated room.
Diagnosis of malfunctions: when disassembly will not help
Not all problems are solved by cleaning or replacing consumables, but here are typical faults in which disassembly may not help (or even make the situation worse):
- π¨ Vacuum doesn't turn on: If the lights don't burn, the power card or the battery is a problem. If they burn but don't respond to the buttons, the main controller is burned.
- π Turbine doesn't work: If the engine is buzzing but not rotating, the bearing is jammed (motor replacement is needed.
- π‘ Not connected to Wi-Fi: If the connection is reset, it is the Wi-Fi module (on the board) that is to blame. If it does not see the network, check the antenna (thin wire from the board to the case).
- ποΈ Fighting on furniture: If you do not see obstacles, the laser rangefinder is defective (LDS). If the curve is going - the problem is in the gyroscope or wheels.
If you suspect a fee breakdown, pay attention to:
- π₯ Darkened or bloated capacitors;
- π₯ Traces of burning or melting;
- π§ Oxidized contacts (green coating).
In such cases, self-repair is not recommended - it is better to contact the service. S7 It costs 5-7 thousand rubles, and repairs LDS β 3-4 thousand.
How to check the performance LDS-sensor?
Cleaning the vacuum cleaner: how not to forget anything important
Putting Roborock together after a showdown is sometimes harder than disassembling. Here's a step-by-step checklist to keep things in mind:
βοΈ Roborock assembly
Pay particular attention to:
- π Power connectors - they should sit tight, without backlash.
- π Fan turbine β check that it rotates freely (blow into the garbage hole).
- πΆ Wi-Fi antenna β it is attached to the body and can detach during assembly.
After assembly:
- Turn on the vacuum cleaner and check all operating modes (regular cleaning, maximum power, return to base).
- Run a test cleaning on a flat surface (like a tile) to make sure the sensors are working.
- Check the connection to the app β if the vacuum cleaner is not online, restart it (hold the power button for 10 seconds).
β οΈ Warning: If the vacuum cleaner does not turn on or makes unusual sounds after assembly, turn it off immediately and check it:
- Will there be a wire cut off?
- Is the battery installed correctly (the contacts must match)
- Have you forgotten to connect the display plume (in models with a screen).