This maintenance guide comes from years of hands-on customer support for robot vacuum owners, now published here for anyone to use rather than kept inside one support inbox. Several of the models and parts named below link out to Plus.Parts®, the maintenance parts store run by the same company behind this site, and that is also where much of the experience behind this guide comes from.
When a Xiaomi Mijia OMNI series robot leaves faint streaks after a mopping run or returns to dock short of its usual runtime, a consumable has slipped past its service window. The Mijia OMNI family covers the Xiaomi Mijia OMNI 1S
and the Xiaomi X10+, plus the regional OEM variants Xiaomi B101CN, Xiaomi B101GL, and Xiaomi B116, five models built on a shared hardware platform that also underpins the Dreame L10s Ultra, with LDS lidar navigation, a bristle-petal main brush, and a multifunctional dock that washes, hot-air dries, and auto-empties the mop pads and onboard dustbin between sessions. This guide sets out the complete maintenance schedule for the Mijia OMNI platform, links the specific brush, dust bag, and mop pad each model uses, and explains where the individual models diverge in dock configuration and service priority.
Why Xiaomi Mijia OMNI series robots need more frequent maintenance
The bristle-petal main brush resists tangling but its end-cap bearings still need attention
The stock main brush fitted across the Xiaomi Mijia OMNI platform is a bristle-petal design rather than a solid rubber roller, and it is the factory-fitted part on every model in the range, including the Xiaomi Mijia OMNI 1S and the Xiaomi X10+. The bristle-petal layout reduces the rate at which long hair forms a single tight coil around the centre of the roll, but it does not stop fine hair migrating outward to the end-cap bearings at both ends of the brush, where it compacts into a ring that drags on the brush motor. Owners who prefer a different agitation style can fit a rubber or silicone roller sourced from a cross-compatible parts catalogue as an aftermarket swap, but this is an optional upgrade rather than the configuration the robot ships with, and it changes the cleaning and inspection routine described later in this guide. On the Xiaomi B101CN and its platform siblings, the end caps benefit from inspection every one to two weeks regardless of which brush type is fitted.
The multifunctional dock produces dirty water that demands a fixed emptying cadence
All models in the Mijia OMNI series dock with a station that washes the mop pads after every run, transfers debris from the robot’s 350 ml onboard dustbin into a sealed dock dust bag, and blows hot air through the pads for approximately two hours to reduce residual damp before the next session. On the Xiaomi B101CN, Xiaomi B101GL, Xiaomi B116, and Xiaomi Mijia OMNI 1S, the dock also auto-refills the robot’s 80 ml onboard water tank from its own clean-water supply; the Xiaomi X10+ dock is documented primarily around its wash, auto-empty, and hot-air drying functions, and whether auto-refill is included can depend on the regional dock variant. The wash cycle produces dirty water that collects in a dedicated 2.5 litre tank at the base of the dock. Left full for more than two to three days, stagnant water develops an odour and bacterial growth that the next wash cycle can reintroduce onto freshly cleaned pads.
Suction of up to 4,000 Pa still loads the airflow path steadily over time
The Mijia OMNI platform draws up to 4,000 Pa of suction at the robot, with the dock itself drawing up to 1,000 W during its wash and dry cycle. Moving air consistently across a cleaning session of up to 200 square metres means particulate passes through the airflow path with every run, and a filter that has visibly changed colour from its original shade is no longer working as designed regardless of the calendar. This applies equally to the Xiaomi Mijia OMNI 1S and the rest of the series.
Dock spray nozzles accumulate mineral scale in hard-water regions
The dock washes the mop pads by directing water from spray nozzles onto the pad surface. In hard-water regions, mineral deposits form around the nozzle openings over four to six weeks of daily use and progressively narrow the spray pattern. An uneven spray means the pads are only partially cleaned each cycle, which then leaves an inconsistent wet-residue pattern on the floor during the following session. Owners of the Xiaomi B101GL and Xiaomi B116 in areas with hard tap water should wipe the spray nozzles every two to three weeks with a citric-acid solution rather than waiting for the standard monthly interval.
Models in this series compared
| Model | Suction | Mop system | Dock | Brush type |
|---|---|---|---|---|
| Xiaomi Mijia OMNI 1S |
Up to 4,000 Pa | Two independently rotating microfibre pads, auto-lift on carpet | Wash, auto-refill, auto-empty, hot-air dry | Bristle-petal (rubber roller optional) |
| Xiaomi X10+ |
Up to 4,000 Pa | Two independently rotating microfibre pads, auto-lift on carpet | Wash, auto-empty, hot-air dry | Bristle-petal (rubber roller optional) |
| Xiaomi B101CN |
Up to 4,000 Pa | Two independently rotating microfibre pads, auto-lift on carpet | Wash, auto-refill, auto-empty, hot-air dry | Bristle-petal (rubber roller optional) |
| Xiaomi B101GL |
Up to 4,000 Pa | Two independently rotating microfibre pads, auto-lift on carpet | Wash, auto-refill, auto-empty, hot-air dry | Bristle-petal (rubber roller optional) |
| Xiaomi B116 |
Up to 4,000 Pa | Two independently rotating microfibre pads, auto-lift on carpet | Wash, auto-refill, auto-empty, hot-air dry | Bristle-petal (rubber roller optional) |
All five models share the same suction ceiling, cleaning coverage of up to 200 square metres per charge, and an obstacle-crossing height of up to 20 millimetres; where they diverge is in dock configuration and the way each model’s navigation sensor set is described in its own documentation, covered below.
Full-function dock variants: Xiaomi Mijia OMNI 1S, B101CN, B101GL, and B116
The Xiaomi Mijia OMNI 1S, Xiaomi B101CN, Xiaomi B101GL, and Xiaomi B116 all ship with the comprehensive multifunctional dock: clean-water auto-refill to the robot’s 80 ml tank, mop-pad washing, hot-air pad drying over approximately two hours, and sealed auto-empty transfer of the 350 ml onboard dustbin into the dock’s 2.5 litre dust bag. Navigation on this group combines LDS lidar with a forward-facing structured-light and AI obstacle sensor array, confirmed present on the Xiaomi B101CN and the Xiaomi Mijia OMNI 1S specifically, though it is not exclusive to either model. The maintenance implications are a two-to-three-day dirty-water tank cycle, a monthly nozzle clean, and the same core consumable schedule across all four models.
Auto-empty focus variant: Xiaomi X10+
The Xiaomi X10+ uses a dock that positions its wash, auto-empty, and hot-air drying functions as its documented primary features. Auto-refill availability on this model can depend on the regional dock variant, so owners should confirm the specification of their own unit rather than assume it matches the other four models. Navigation on the X10+ is described in its sourcing as S-Cross AI 3D obstacle avoidance, working alongside the same LDS lidar turret fitted across the series. The maintenance schedule otherwise matches the rest of the range across every consumable: bristle-petal brush, mop pads, side brush, and dust bag all follow the same service intervals.
Replacement parts and service intervals
Main brush (bristle-petal)
Inspect the bristle-petal brush every one to two weeks. Remove it from the brush chamber and run a finger along the full length to check for hair wound around the bristle rows, then examine both end-cap fittings for compacted fine hair. A toothpick or seam ripper clears the end caps without damaging the bristle rows or the plastic bearing seat. The brush should spin freely by hand with no drag at either end. Replace the brush every four to six months under daily use, sooner in households with pets or long hair, where fraying of the bristle petals becomes visible earlier. Owners who have fitted the optional rubber or silicone roller upgrade should follow that part’s own wear pattern instead, checking for flattening of the roller fins rather than bristle fraying. This part is available as a single item for every model in the series: the Xiaomi Mijia OMNI 1S
, the Xiaomi X10+, the Xiaomi B101CN, the Xiaomi B101GL, and the Xiaomi B116 all link directly to their own brush listing rather than the full maintenance set.
HEPA filter
Tap the filter firmly on all four edges over a waste bin every one to two weeks to dislodge loose surface dust. Do not rinse the filter under water unless the packaging explicitly confirms it is washable, since wetting the medium collapses the electrostatic charge that gives it fine-particle retention, and that loss is permanent even once the filter has dried. Replace the filter every three to four months under daily use; the reliable trigger is colour, since a filter face that has shifted to a consistent mid-grey is spent regardless of elapsed time. No model in the Mijia OMNI series currently has the filter listed as a separate single item, so each mention below links to that model’s maintenance set instead, which includes the filter as one of its components: the Xiaomi Mijia OMNI 1S, Xiaomi X10+, Xiaomi B101CN, Xiaomi B101GL, and Xiaomi B116.
Side brush
Inspect the side brush every week. Hair and long fibre collect at the base of the brush stem where it meets the motor post, and a compacted ring there applies steady drag that shortens the motor’s working life. Clear wrapped material with fine scissors or a toothpick, cutting rather than pulling to avoid transferring tension to the motor shaft. Replace the side brush every three to six months, favouring the shorter end of that window in pet households or homes with long carpet fibres. On the Xiaomi B101GL and Xiaomi B116, a bent or asymmetrical brush arm should be replaced immediately rather than pressed back into shape, since the flexible material takes a permanent set once deformed and produces uneven edge coverage from that point forward.
Mop pads
The Mijia OMNI series uses two independently rotating microfibre pads that lift automatically by approximately 7 millimetres when the robot detects carpet. The dock’s wash and hot-air drying cycle extends the functional life of the pads considerably compared with hand-rinse maintenance, but it does not reverse fibre degradation. Replace the pads every one to three months under daily use. Inspect at the eight-week point by pressing a clean finger against the pad surface and checking whether the fibre accepts water immediately; a pad that feels stiff or shows dry patches after multiple wash cycles has reached its service limit. This part is available as a single item for every model: the Xiaomi Mijia OMNI 1S
, the Xiaomi X10+, the Xiaomi B101CN, the Xiaomi B101GL, and the Xiaomi B116 all link directly to their own mop pad listing.
Battery
The 5,200 mAh lithium-ion battery in the Xiaomi Mijia OMNI series delivers a runtime of up to approximately 120 minutes when new, and capacity loss becomes noticeable after two to three years of daily use. The clearest replacement signal is runtime: when the Xiaomi Mijia OMNI 1S, the Xiaomi X10+, or any platform variant begins returning to dock before completing its scheduled coverage, or the app reports a consistent runtime below sixty minutes in a floor plan the robot previously handled without issue, battery replacement is due. Calendar months are a secondary indicator; runtime performance is the reliable arbiter. Keep the charging contacts on the underside of the robot and the corresponding dock pins free from dust and oxidation by wiping both with a dry cloth every two to four weeks, on the same schedule as the lidar turret. Corroded or dust-coated contacts reduce the charge delivered per docking session and can produce symptoms that resemble battery degradation when the actual cause is contact resistance.
Dock dustbag
The sealed 2.5 litre dustbag inside the dock collects debris transferred automatically from the robot’s 350 ml onboard dustbin after every docking cycle. Replace the bag every two to four months under daily use. A bag that fills before the two-month point typically indicates an above-average debris load, common in homes with pets, children, or a high proportion of carpeted floor area. When the bag reaches capacity, the next auto-empty cycle fails mid-transfer and leaves the onboard dustbin unable to accept new debris on the following run. This part is available as a single item for every model: the Xiaomi Mijia OMNI 1S
, the Xiaomi X10+, the Xiaomi B101CN, the Xiaomi B101GL, and the Xiaomi B116 all link directly to their own dust bag listing rather than the full maintenance set.
Dock dirty-water tank
Empty and rinse the 2.5 litre dirty-water tank every two to three days without exception across all Mijia OMNI models. After rinsing under running water, wipe the interior with a clean cloth and allow the tank to air-dry briefly before reinstalling; reinstalling a damp tank creates the same humid conditions the rinse was meant to clear. In hard-water regions, soak the tank in a solution of equal parts white vinegar and water for thirty minutes once a month to dissolve mineral deposits that accumulate around the drainage outlet. The dock’s separate 2.5 litre clean-water tank should be refilled from a fresh source at the same interval on models without auto-refill, or checked for correct auto-refill operation on the Xiaomi B101CN, Xiaomi B101GL, Xiaomi B116, and Xiaomi Mijia OMNI 1S units.
Dock spray nozzles and wash plate
Wipe the dock’s spray nozzles every month with a cloth dampened in dilute citric acid or white vinegar, shortening that interval to every two to three weeks in hard-water areas. Wipe the wash plate itself with a dry cloth every two to three weeks to remove residue that builds up where the pads press against the plate during each wash cycle. A wash plate carrying a biofilm layer returns dirty contact to the pads every cycle and steadily undermines the automated wash function, a problem owners typically diagnose as a mop pad fault rather than a dock cleanliness issue.
LDS lidar turret and sensor windows
Wipe the rotating LDS lidar window at the top of the chassis every two to four weeks with a dry microfibre cloth. On the Xiaomi B101CN and Xiaomi Mijia OMNI 1S, wipe the forward-facing structured-light and AI obstacle sensor array on the same schedule; this sensor group is confirmed present on both models and not exclusive to either. On the Xiaomi X10+, the equivalent step covers the S-Cross AI 3D obstacle avoidance sensor window. Never use solvents on any sensor window; a dry microfibre cloth is the only recommended method.
Maintenance at a glance
| Component | Clean | Replace |
|---|---|---|
| Main brush (bristle-petal) | Every 1 to 2 weeks | Every 4 to 6 months |
| HEPA filter | Every 1 to 2 weeks | Every 3 to 4 months |
| Side brush | Weekly inspection | Every 3 to 6 months |
| Mop pads | Auto-washed by dock | Every 1 to 3 months |
| Battery | Wipe charging contacts every 2 to 4 weeks | Every 2 to 3 years (when runtime drops below 60 minutes) |
| Dock dustbag | – | Every 2 to 4 months |
| Dirty-water tank | Every 2 to 3 days | – |
| Dock spray nozzles | Monthly (every 2 to 3 weeks in hard-water areas) | – |
| Dock wash plate | Every 2 to 3 weeks | – |
| LDS lidar turret and sensors | Every 2 to 4 weeks | – |
Common problems and their maintenance causes
Suction noticeably weaker despite a recent filter tap
The filter has reached saturation. A tapping clean removes loose surface dust but leaves compacted inner layers intact. Remove the filter and inspect the entire face: if the medium has shifted from white to a consistent mid-grey or brown, replace it regardless of elapsed weeks. If the filter still looks pale, check the suction inlet at the top of the onboard dustbin for a caked ring of fine dust that has built up over multiple sessions. On the Xiaomi X10+, also confirm that the auto-empty cycle completed successfully on the most recent docking, since a partially full onboard bin reduces effective dustbin volume and forces the filter to work harder than intended during the following session. There are no numbered fault codes on this platform for a weak-suction condition; the symptom itself is the diagnostic signal.
Mop pads leaving streaks or wet residue on hard floors
Three causes, in order of likelihood. First, the dock spray nozzles have mineral build-up delivering uneven water coverage during the wash cycle, leaving a pad that is clean in some zones and dirty in others; wipe the nozzles and, if scale is visible, apply a dilute citric acid solution for ten minutes before wiping dry. Second, if the nozzles look clear, inspect the pads themselves: a pad past its service life loses the ability to absorb water evenly and begins redistributing floor residue in streaks rather than lifting it. Third, on the Xiaomi Mijia OMNI 1S, confirm that both rotating pads are seated correctly and lifting evenly on carpet transitions, since a pad that lifts unevenly drags a wet edge across the floor immediately after the carpet section ends.
Dirty-water tank develops odour within two days of emptying
The tank was not dried after its last rinse, and residual moisture created the conditions for rapid bacterial growth. Empty the tank, rinse under running water, wipe the interior with a clean dry cloth, and allow thirty minutes of air-drying before reinstalling. If the smell returns within a day of a fresh rinse, soak the tank in equal parts white vinegar and water for thirty minutes, rinse again, and allow it to air-dry completely. On the Xiaomi B101CN and Xiaomi B101GL, if the smell recurs consistently despite the acid soak, inspect the tank outlet for mineral build-up restricting drainage, which keeps the tank wetter than intended after each rinse.
Auto-empty fails or dustbin remains full after docking
The dustbag has reached capacity, or the transfer pathway between the robot’s bin and the dock’s suction port is obstructed. Replace the bag first, since this resolves the problem in the majority of cases. If a fresh bag does not restore normal operation, wipe the docking port at the underside of the robot and the corresponding port seal on the dock with a dry cloth, since fine dust accumulates around the seal across months of docking cycles and breaks the airtight contact needed for clean transfer. On the Xiaomi B116, confirm that the onboard dustbin is fully seated after any manual inspection, since a bin inserted one click short of its locked position will misalign with the dock’s suction port.
Brush not spinning or a grinding noise from the brush chamber
Compacted fine hair in one or both end-cap bearings is generating enough friction to strain the brush motor. Remove the brush completely and inspect the fittings at each end; a toothpick clears the compacted ring without damaging the bristle rows or the plastic bearing seat. The brush must spin freely by hand with no perceptible drag before reinstallation. If the problem returns within a few days of a thorough clean, the bearing housing itself has worn beyond its design tolerance, and the Xiaomi Mijia OMNI 1S or Xiaomi X10+ brush listing, depending on the model, is the direct replacement part rather than the full maintenance set. This platform has no official numbered fault codes; a grinding noise or a stalled brush is always diagnosed from the symptom itself, not from an in-app error number.
Robot navigates erratically or refuses to leave the dock
The LDS lidar window has accumulated enough dust to generate false obstacle readings that the robot interprets as navigation hazards. Wipe the rotating turret window with a dry microfibre cloth. On the Xiaomi B101CN and Xiaomi Mijia OMNI 1S, also wipe the forward-facing structured-light and AI obstacle sensor lens at the same time; on the Xiaomi X10+, wipe the S-Cross AI 3D sensor window. If erratic navigation persists after cleaning, check the cliff sensors on the underside of the chassis, since a thin film of dust there is interpreted by the firmware as a drop edge and can prevent the unit from crossing floor space it has cleaned without incident for months.
Mop pads remain damp or smell faintly after the hot-air drying cycle
Either the hot-air dryer vent grilles at the base of the dock are partially blocked by lint, or the pads have degraded to a point where they retain moisture through the roughly two-hour drying cycle regardless of airflow. Inspect the vent grilles on the Xiaomi B101CN, Xiaomi B101GL, and Xiaomi B116 at the base of the dock, removing any visible lint with a soft brush and taking care not to push material further into the grille slots. If the vents are clear and the pads still emerge damp, the fibre has degraded past the point where heat can extract residual moisture and the pads need replacing.
What consistent maintenance protects over time
Every consumable in the Xiaomi Mijia OMNI platform influences the working load of the next one in the chain. A filter that has crossed into the grey zone forces the robot’s motor to draw additional current to maintain rated suction at up to 4,000 Pa, which accelerates wear in the suction motor over many months of consistent overloading. A compacted end-cap bearing on the main brush applies the same quiet drag to the brush motor, and the motor absorbs that load invisibly until it fails earlier than its design life. A full dock dustbag that breaks the auto-empty cycle leaves the onboard bin unable to accept new debris, reducing effective capture volume and loading the filter faster than the design baseline intended. A dirty-water tank left unrinsed for several days reintroduces bacteria onto freshly washed pads, which then produce floor streaks the owner reads as a mop pad problem and replaces early, when the actual root cause was tank neglect. Staying on schedule across all components keeps each subsystem within its design operating range and extends the practical working life of the robot compared with irregular maintenance.
The Plus.Parts® Maintenance Set for the Xiaomi Mijia OMNI series covers the complete service scope in a single order: main brush, mop pads, side brush, filter, and dock dustbag. It is a direct functional alternative to the original consumables used across all five models in the series, with the same fit and performance in each case. Keeping a complete set on hand removes the most common reason a consumable is extended past its service interval: a delivery wait that turns a planned two-week extension into a two-month oversight.
How the Xiaomi Mijia OMNI series models differ
The Xiaomi Mijia OMNI series shares a single consumable family and a common platform architecture, including LDS lidar navigation, a bristle-petal main brush, and a multifunctional dock, but the named models differ in dock configuration, regional origin, and how they are positioned within Xiaomi’s product line. Those differences affect dock-specific attention points but not the core consumable replacement schedule, which is uniform across the series.
Xiaomi Mijia OMNI 1S
The Xiaomi Mijia OMNI 1S is the primary named consumer model in the series and the variant most commonly encountered in European households with Xiaomi ecosystem integration. It ships with the full multifunctional dock: mop-pad washing with hot-air drying, sealed dustbag auto-empty, and clean-water auto-refill. Navigation combines LDS lidar with a forward-facing structured-light and AI obstacle sensor array, confirmed present on this model. The maintenance routine matches the platform baseline throughout: brush inspection every one to two weeks with replacement at four to six months, filter tapping every one to two weeks with replacement at three to four months, side brush at three to six months, mop pads at one to three months, and dustbag at two to four months.
Xiaomi X10+
The Xiaomi X10+ positions its wash, auto-empty, and hot-air drying dock functions as its documented primary features, with auto-refill availability depending on the regional dock variant fitted to a given unit. Navigation on this model is described as S-Cross AI 3D obstacle avoidance, working alongside the same LDS lidar turret used across the series. The maintenance schedule is otherwise identical to the rest of the range across every consumable, and the bag replacement interval at two to four months is the dock-side task owners encounter most frequently given the dock’s auto-empty emphasis.
Xiaomi B101CN
The Xiaomi B101CN is the China-market configuration of the Mijia OMNI platform. The CN designation indicates a unit sold through Xiaomi’s domestic Chinese retail channel, which may carry firmware and app features configured for that market. The consumable set and maintenance intervals are unchanged from the series standard, and navigation includes the same confirmed structured-light and AI obstacle sensor array fitted to the Mijia OMNI 1S. Owners who have relocated a B101CN unit to a European address should assess local tap-water hardness and consider adjusting the spray-nozzle cleaning cadence from monthly to fortnightly if visible scale appears sooner than expected.
Xiaomi B101GL
The Xiaomi B101GL is the global-market variant of the same chassis. The GL suffix indicates a configuration intended for international distribution, typically with broader voltage compatibility and multilingual app support. The mechanical platform, consumable set, and maintenance schedule are identical to the B101CN. The distinction between the two is primarily regulatory and software-facing rather than mechanical, and parts ordered for one fit the other without modification.
Xiaomi B116
The Xiaomi B116 is a further OEM model code within the Mijia OMNI platform family. It operates on the same architecture as the B101 variants and the Mijia OMNI 1S, using the same bristle-petal brush, LDS lidar, and multifunctional dock. Maintenance intervals and cleaning cadences are identical across all five models in the series. Replacement parts sourced for any other model in the Mijia OMNI series fit the B116 without modification.
Type reference
| Type | Alternative type | Retail type |
|---|---|---|
| RMSRB0 | – | – |
| RDB3 | – | – |
| RMP8 | 20010100000872 | – |
| RAK11 | DRE-L10SU-KIT | RAK12 |