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.
The Dreame S-series is Dreame’s European-market robot vacuum-mop line. All four models share a rubber main brush roll, LDS lidar navigation, and a mop-wash dock, with the Dreame S10 Pro
and Dreame S20 Pro adding fully multifunctional dock stations with auto-empty, auto-refill, and hot-air drying. When an S-series robot returns streaky floors, produces a stale-water smell, or triggers brush errors more frequently, a consumable has drifted past its service interval. This guide sets out the complete maintenance schedule and explains where the Dreame S10, Dreame S10 Plus, Dreame S10 Pro, and Dreame S20 Pro diverge in their day-to-day upkeep.
Why Dreame S-series robots need more frequent maintenance
The rubber main brush resists hair wrap but still accumulates fine hair in end-cap bearings
Dreame’s S-series uses a one-piece rubber roller rather than the bristle-and-fin hybrid common on earlier platforms. The design reduces the rate at which long hair wraps into a tight coil around the roll, which is the most common cause of brush stall on traditional robots. It does not eliminate the problem. Fine hair still migrates to the end-cap bearings at both ends of the roll, and once compacted there it applies a continuous drag to the brush motor. Every S-series model from the Dreame S10 to the Dreame S20 Pro benefits from an end-cap inspection every one to two weeks. The rubber fins themselves gradually flatten over five to seven months of daily use and lose the sweeping profile needed for efficient edge and carpet cleaning.
Cool-water mop washing places the dirty-water tank at the centre of dock maintenance
Unlike the high-temperature hot-water wash cycles on some competing dock platforms, the Dreame S-series dock washes pads with cool or warm tap water after each run. The wash extends pad life considerably compared with hand-rinsing, but it also leaves residue-laden water sitting in the dirty-water tank for hours at a time. Stagnant water at room temperature develops a noticeable odour within two to three days, and bacterial growth in the tank can transfer back onto freshly washed pads on the following cleaning cycle. Emptying the dirty-water tank every two to three days without exception is the single most important dock-side habit on this entire platform, regardless of which S-series model is in use.
Divergent suction tiers and mop module types create different wear profiles across the four models
The S-series is not a uniform platform. The Dreame S10 runs at 5,300 Pa with a flat vibrating mop pad. The Dreame S10 Plus raises suction to approximately 7,000 Pa and switches to a rotating pad that concentrates wear on the outer circumference. The Dreame S10 Pro matches that suction tier but returns to a flat vibrating pad and adds a multifunctional dock. The Dreame S20 Pro combines the S10 Pro’s dock and suction with an extended-reach mop plate that pushes the pad further toward walls and concentrates additional wear on the outer pad edge. These differences mean that filter replacement intervals, mop inspection cadence, and dock maintenance requirements vary across the four models.
Models in this series compared
| Model | Suction | Mop system | Dock | Brush type |
|---|---|---|---|---|
| Dreame S10 |
5,300 Pa | Flat vibrating pad | Mop wash and auto-dry | Rubber roller |
| Dreame S10 Plus |
7,000 Pa | Flat rotating pad | Auto-empty dustbag dock | Rubber roller |
| Dreame S10 Pro |
7,000 Pa | Flat vibrating pad | Multifunctional: wash, auto-refill, auto-empty, auto-dry | Rubber roller |
| Dreame S20 Pro |
7,000 Pa | Extended-reach vibrating pad | Multifunctional: wash, auto-refill, auto-empty, auto-dry | Rubber roller |
Entry-level S10 at 5,300 Pa with a mop-wash dock
The Dreame S10 is the entry point to the S-series. At 5,300 Pa the filter loads at a moderate pace and the replacement cycle sits in the four-to-six-month window under daily residential use. The dock washes the mop pad with cool water after each run and blows fan-assisted air across it to reduce residual damp before the next session. Some regional S10 configurations do not include a sealed auto-empty dustbag; where that is the case, the onboard dustbin is emptied manually and the dock dustbag interval does not apply. The flat vibrating pad distributes wear evenly across the full pad surface, supporting an eight-week inspection interval before replacement is needed.
S10 Plus with a rotating pad and auto-empty dock at 7,000 Pa
The Dreame S10 Plus raises suction to approximately 7,000 Pa and adds a sealed auto-empty dock. The higher suction shortens the filter replacement window to three to five months and the auto-empty dock introduces a two-to-four-month dustbag interval. The S10 Plus’s rotating mop pad motion is the key maintenance differentiator within the S-series: unlike the vibrating pads on the other three models, rotation concentrates wear on the outer circumference of the pad. This wear pattern means the S10 Plus pad reaches the end of its effective service life faster at the edges than at its centre, and the inspection interval should be brought forward to every six weeks rather than the eight-week baseline that suits the vibrating-pad models.
S10 Pro and S20 Pro with full multifunctional dock stations
The Dreame S10 Pro and Dreame S20 Pro share the same 7,000 Pa suction tier and the same fully multifunctional dock that washes pads, auto-refills the clean-water tank, empties the onboard dustbin into a sealed bag, and applies hot-air drying after every wash cycle. The filter window sits at three to five months and the dustbag at two to four months. The added dock functions introduce two further monthly maintenance points: the mop-wash spray nozzles need periodic descaling and the hot-air dryer vent grilles at the base of the dock need a lint wipe to preserve drying performance. The S20 Pro adds an extended-reach mop plate to the S10 Pro’s dock and suction configuration. That extended reach concentrates pad wear on the outer edge in a similar manner to the S10 Plus rotating pad, bringing the inspection interval to six weeks and, in hard-water regions, causing the dock nozzle to accumulate scale faster than on the S10 Pro.
Replacement parts and service intervals
Rubber main brush roll
Inspect every one to two weeks. Remove the roll and clear any wrapped hair along its full length with scissors or a seam ripper, then check both end-cap bearings for compacted fine hair and clear with a toothpick. The roll should spin freely by hand before reinstalling. Dreame’s platform guidance recommends replacement every six to twelve months. In pet households, expect the lower end of that window; in lightly used single-occupancy flats, the upper end is realistic. On the Dreame S10 Pro
and Dreame S20 Pro running at 7,000 Pa daily, the higher continuous suction pressure flattens the rubber fins faster and draws the interval toward six months. Reduced carpet pick-up despite a thorough cleaning session is the most reliable end-of-life indicator.
HEPA filter
Tap the filter firmly on all four sides over a waste bin every one to two weeks to dislodge accumulated debris. Do not wash the filter with water unless the packaging specifically confirms it is washable; washing degrades the HEPA medium’s pleating even when the filter looks intact after drying. Replacement intervals follow the suction tier: every four to six months on the Dreame S10 at 5,300 Pa, and every three to five months on the Dreame S10 Plus, Dreame S10 Pro, and Dreame S20 Pro at approximately 7,000 Pa. A HEPA filter is not yet listed as its own separate part for any of these four models, so filter replacements are sourced through each model’s Maintenance Set until an individual listing is added. A consistent mid-grey colour across the filter face is the visual signal to replace regardless of elapsed weeks.
Side brush
Inspect the side brush mounting post every week. Hair and long fibres accumulate at the base of the stem and progressively load the small motor. Clear any wrapped material with fine scissors or a toothpick, being careful not to pull hard on the flexible arm. Replace every three to six months, sooner in pet households. A bent or asymmetrical brush produces uneven reach along walls and into corners and should be replaced immediately rather than straightened; the flexible material takes a permanent set once deformed. This applies equally across the Dreame S10, Dreame S10 Plus, Dreame S10 Pro, and Dreame S20 Pro; the side brush is not yet listed as its own separate part for these models, so a replacement is sourced through each model’s Maintenance Set.
Mop pads
The dock’s wash cycle handles daily hygiene but does not reverse physical degradation of the pad fibre over time. Dreame’s maintenance guidance recommends replacement every one to three months under daily use. The flat vibrating pad on the Dreame S10 and Dreame S10 Pro distributes vibration evenly and supports an eight-week inspection interval. The rotating pad on the Dreame S10 Plus and the extended-reach pad on the Dreame S20 Pro both concentrate wear on the outer edge and should be inspected every six weeks. A mop pad is not yet listed as its own separate part for any S-series model, so pad replacements are sourced through each model’s Maintenance Set. A pad that feels stiff after a wash cycle or no longer fully absorbs a splash of water on its surface has passed its effective service life and is redistributing residue rather than lifting it.
Dock dustbag
The sealed auto-empty dustbag on the Dreame S10 Plus
, Dreame S10 Pro, and Dreame S20 Pro captures material transferred from the onboard dustbin after every run. Dreame’s guidance puts the replacement interval at every two to four months, or approximately seventy-five days of daily use. A full bag causes the next auto-empty cycle to fail mid-transfer and leaves the onboard dustbin unable to accept new debris on the following run. The sealed bag design prevents fine dust from escaping into the room during replacement, which matters in homes where someone has pollen or pet-dander sensitivity. On the Dreame S10, this interval only applies to configurations that include an auto-empty dock station.
Dock dirty-water tank and spray nozzles
Empty and rinse the dirty-water tank every two to three days on all S-series models. After rinsing with fresh water, wipe the interior with a cloth and allow it to air-dry briefly before reinstalling; reinstalling a wet tank encourages the same bacterial growth the rinse was meant to prevent. 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 build-up. On the Dreame S10 Pro and Dreame S20 Pro, also wipe the dock’s mop-wash spray nozzles monthly; scale build-up on these nozzles causes uneven water delivery and is the primary non-pad cause of streaking. In hard-water areas, increase the nozzle wipe to every two to three weeks. The S20 Pro’s extended-reach nozzle is slightly more exposed and tends to accumulate scale faster than the S10 Pro’s nozzle under the same water conditions.
Sensor windows and lidar turret
All S-series models use a rotating LDS lidar turret on top of the chassis, keeping the navigation sensor well above floor-level dust. A dry microfibre wipe of the rotating turret window every two to four weeks is enough to maintain reliable laser ranging. On AI-equipped S-series configurations with a forward-facing camera, wipe the camera window and the underside cliff sensors weekly. Smudged sensors cause unnecessary detours around clear floor space and in persistent cases prevent the robot from leaving the dock. Do not use cleaning solvents on the lidar window; a dry cloth is the only recommended method.
Battery
The S-series robots carry a built-in lithium-ion battery with a typical service life of two to three years under daily use, equating to roughly three hundred to five hundred full charge cycles. The charging contacts on the underside of the robot and on the dock base are the most maintenance-sensitive part of the charging system. Wipe both sets of contacts monthly with a dry cloth; oxidation or a film of household dust on the gold contact pads increases resistance and results in slower charging and inconsistent docking behaviour over time. The clearest signal that the battery needs replacing is a noticeable and progressive reduction in cleaning time per charge: if the robot that once covered a medium-sized flat on a single charge now completes only two rooms before returning to the dock, the battery cells have lost capacity beyond the usable threshold. A replacement battery restores the robot’s full per-charge range and avoids the premature motor wear that comes from running frequent partial cycles on a degraded cell. This applies across the Dreame S10, Dreame S10 Plus, Dreame S10 Pro, and Dreame S20 Pro; a replacement battery is not yet listed as its own separate part for these models, so a replacement is sourced through each model’s Maintenance Set.
Maintenance at a glance
| Component | Clean | Replace |
|---|---|---|
| Rubber main brush roll | Every 1 to 2 weeks | Every 6 to 12 months |
| HEPA filter | Every 1 to 2 weeks | Every 4 to 6 months (S10); every 3 to 5 months (S10 Plus, S10 Pro, S20 Pro) |
| Side brush | Weekly inspection | Every 3 to 6 months |
| Mop pads | Auto-washed by dock | Every 1 to 3 months (inspect at 8 weeks for S10, S10 Pro; 6 weeks for S10 Plus, S20 Pro) |
| Dock dustbag | — | Every 2 to 4 months (S10 Plus, S10 Pro, S20 Pro) |
| Dirty-water tank | Every 2 to 3 days | — |
| Dock spray nozzles | Monthly (every 2 to 3 weeks in hard-water areas; S10 Pro and S20 Pro only) | — |
| Lidar turret and sensor windows | Every 2 to 4 weeks | — |
| Battery | Wipe charging contacts monthly | Every 2 to 3 years or when cleaning time per charge drops significantly |
Common problems and their maintenance causes
Suction noticeably weaker than it used to be
The HEPA filter is saturated. Remove the filter and inspect; if the medium has shifted from white to a consistent grey, replace it regardless of elapsed weeks. If the filter still looks clean, inspect the suction inlet at the top of the onboard dustbin for a caked-dust blockage and check the main brush chamber for debris packed behind the roll. On the Dreame S10 Pro and Dreame S20 Pro, a partially failed auto-empty cycle can also leave the onboard bin half-full after docking, which the robot treats as normal but which limits debris capture on the following run.
Mop pads returning with streaks or damp patches on hard floors
Work through three causes in order. First, the dock spray nozzles on the Dreame S10 Pro or Dreame S20 Pro have partial mineral build-up and are delivering uneven water to the pad; wipe the nozzles and, if scale is visible, descale with dilute citric acid. Second, the pad fibre has reached end-of-life and is redistributing residue rather than lifting it; replace the pad. Third, on the Dreame S10, confirm the pad plate is fully latched; a partially seated plate vibrates unevenly and leaves a characteristic wavy streak pattern behind the robot on hard floors.
Dirty-water tank smells of stagnant water
The tank was not emptied on the two-to-three-day schedule. Empty it, rinse thoroughly under running water, and wipe the interior dry. If a faint smell persists after a fresh-water rinse, soak the tank in equal parts white vinegar and water for thirty minutes, rinse again, and allow it to air-dry completely before reinstalling. Never reinstall a wet tank; residual moisture promotes the bacterial growth the rinse was meant to remove.
Auto-empty cycle fails or dustbin remains full after docking
The dustbag has reached capacity, or the transfer chute between the robot’s dustbin and the dock is blocked by fine dust. Replace the bag first; this resolves the problem in most cases. If the cycle still fails with a fresh bag, wipe the docking port at the base of the robot and the port seal on the dock with a dry cloth. On the Dreame S10 Plus, also confirm the onboard dustbin is fully seated after any manual inspection; a bin pushed in by one step rather than two will not align with the dock’s suction port and the auto-empty will stall without triggering an error.
Brush roll not spinning or brush-error alert appearing
Compacted fine hair in one or both end-cap bearings is applying enough drag to trigger the robot’s over-current protection. Remove the brush roll and inspect the shaft fittings at each end. Clear all wrapped material with a toothpick and wipe the bearing seats clean. The roll should spin freely by hand before reinstalling. If the brush error returns within a few days of cleaning, the bearings have worn past their service life and the roll needs replacing. This is most typical on the Dreame S10 Pro and Dreame S20 Pro toward the six-month mark in pet households running daily at 7,000 Pa.
Robot detours around clear floor space or will not leave the dock
The lidar turret window or forward-facing camera has accumulated enough contamination to generate false obstacle readings. Wipe the rotating turret window with a dry microfibre cloth and the front camera window on the same pass. If the problem persists, inspect the cliff sensors on the underside of the chassis; a thin film of dust can blind these sensors and the robot then interprets the blinded sensor as an edge it must avoid, causing erratic pathing or refusal to depart the dock entirely.
Persistent damp smell from mop pads after the dock cycle completes
The pad has reached end-of-life and is retaining moisture even after the dock’s drying phase. On the Dreame S10 Pro and Dreame S20 Pro with active hot-air drying, also check that the dryer vent grilles at the base of the dock are not blocked by lint; a partially blocked vent reduces airflow and leaves pads damp even when the dock reports a successful drying cycle. Clear the vent grilles with a dry brush, then replace the pad if the smell persists after the grilles are confirmed clear.
What consistent maintenance protects over time
Every consumable on the S-series platform influences the wear rate of the next one in the chain. A partially loaded HEPA filter forces the main motor to draw additional current to maintain rated suction, which shortens motor bearing life measurably over eighteen to twenty-four months of daily running. A compacted brush end-cap applies the same category of quiet, continuous drag. A full dustbag that interrupts the auto-empty cycle on the Dreame S10 Pro or Dreame S20 Pro leaves debris in the onboard bin that the robot carries into the next session, loading the filter faster than it was designed to accept. A dirty-water tank left full for four days reintroduces bacterial growth onto freshly washed pads, producing the floor streaks that owners read as a mop-pad problem, when the root cause was a tank-emptying task skipped twice in a row.
The Plus.Parts® Maintenance Set covers the complete service scope for all four S-series models, including the main brush roll, HEPA filter, side brush, mop pads, and dock dustbag, in a single order. It is a direct functional alternative to the original Dreame RAK11, DRE-L10SU-KIT, and RAK12 consumables with the same fit, dimensions, and filtration specification. Having a complete set on hand removes the risk of extending any single component past its replacement interval while waiting for a part to be delivered.
How the S10, S10 Plus, S10 Pro and S20 Pro models differ
The Dreame S10 is the entry point to the S-series. It runs at 5,300 Pa with a flat vibrating mop pad and a basic mop-wash dock that uses cool water and fan-assisted drying. The lower suction places the filter on a four-to-six-month replacement cycle, the longest in the range. The flat vibrating pad distributes wear evenly across its full surface, which allows an eight-week inspection interval before replacement is likely to be needed. Some regional S10 configurations do not include a sealed auto-empty dustbag; on those variants the onboard dustbin requires manual emptying and the bag interval does not apply.
The Dreame S10 Plus raises suction to approximately 7,000 Pa and adds a sealed auto-empty dock. It is the only model in the S-series to use a rotating mop pad rather than a vibrating one. The rotating motion concentrates pad wear on the outer circumference, bringing the inspection interval to six weeks and making the S10 Plus the model in the range most sensitive to delayed pad replacement. The higher suction shortens the filter window to three to five months and the auto-empty dock introduces a two-to-four-month bag interval. The S10 Plus dock does not include auto-refill or hot-air pad drying; dirty-water tank emptying and passive pad drying apply in the same way as the S10.
The Dreame S10 Pro matches the S10 Plus’s 7,000 Pa suction tier but switches back to a flat vibrating pad and upgrades the dock to the full multifunctional station with auto-refill and hot-air drying. Returning to the flat vibrating pad restores the eight-week mop inspection baseline. The multifunctional dock adds two further monthly tasks: a nozzle descale wipe and a dryer-vent lint wipe. Skipping either produces damp-pad smell within two to three weeks of the missed clean. Filter and dustbag intervals match the S10 Plus.
The Dreame S20 Pro is the top-specified model in the S-series. It carries the S10 Pro’s suction tier and multifunctional dock and adds an extended-reach mop plate designed to push the pad further outward for wall-to-edge coverage. The extended reach concentrates wear on the outer edge of the pad in the same way as the S10 Plus’s rotating motion and brings the inspection interval to six weeks even though the mop type is a flat vibrating pad rather than a rotary design. In hard-water regions, the extended-reach nozzle on the S20 Pro tends to accumulate scale faster than the standard nozzle on the S10 Pro and should be descaled every two to three weeks rather than monthly.
Type reference
| Type | Alternative type | Retail type |
|---|---|---|
| RAK11 | — | — |
| DRE-L10SU-KIT | — | — |
| RAK12 | — | — |