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 iRobot Roomba Essential and Roomba 105 platform centres on a shared set of consumables: a multi-surface rubber roller, a screw-in HEPA filter, a clip-on side brush, and a flat microfibre pad on the combo variants. The Roomba 105 Combo
and Roomba 105 Vac run at up to 7,000 Pa through ClearView LiDAR navigation, while the Roomba Combo Essential and Roomba Combo 2 Essential use reactive navigation with adjustable suction levels rather than a quoted Pa figure: three levels on the Combo Essential and four on the Combo 2 Essential. This guide covers the full maintenance schedule for all 16 models and retailer variants in this family. The comparison table below shows the 6 main models; retailer SKU variants sharing the same consumable set are described in detail in the How the models differ section.
Why iRobot Roomba Essential robots need more frequent maintenance
Single-filter design with no dock pre-filter stage
Unlike flagship robots that route auto-empty airflow through a dedicated dock filter before it reaches the robot, every model in the Roomba Essential family routes all exhaust through a single filter seated directly behind the robot’s dustbin. That filter carries the full particulate load of every cleaning session. On the Roomba 105 Combo and Roomba 105 Vac, which operate at up to 7,000 Pa on maximum mode, the airflow volume through the filter is substantially higher than on entry-level platforms, and the filter loads faster as a result. A partially clogged filter forces the motor to draw additional current to maintain suction, generating heat and gradually shortening motor life. iRobot’s own guidance is to replace the filter every three to six months; keeping to the shorter end of that range, or tightening it further under heavy daily use as a site maintenance practice, helps keep rated suction intact and protects the drive electronics over the long term.
Multi-surface rubber roller requires regular end-cap maintenance
All models in the Essential family use a single multi-surface roller with rubber fins rather than traditional bristle brushes. Rubber fins resist hair wrap at the centre of the roll far better than bristles, but hair collects with equal reliability at the two plastic end caps and inside the bearing holes on either side. Left unattended for more than four weeks, compressed hair at the caps creates mechanical drag that the brush motor can detect as a stall, and the robot will pause and signal through the app or an indicator light, or complete the run with the roller spinning at reduced torque. The Roomba Combo Essential and Roomba Combo 2 Essential are particularly susceptible to end-cap loading, especially in households with pets or long hair, where debris has less opportunity to clear during a cleaning pass.
Compact 0.4-litre dustbin limits effective run length
Every robot in this family carries a 0.4-litre dustbin. That volume sets the practical limit on how long the robot can clean before debris re-deposits along the trailing cleaning path. On the Roomba 105 Combo + AutoEmpty Dock and Roomba 105 Vac + AutoEmpty Dock, the dock empties the bin after every run, which gives those variants practically unlimited effective run length but compresses the dock bag’s service cycle significantly, because the bag receives a transfer after every session rather than only when the robot’s bin reaches capacity. On the Roomba Combo Essential, which ships with a charge-only dock, the bin must be emptied manually after each run in households with pets or long hair to prevent the roller from working against a full bin on the following pass.
Mop pads on combo models operate without dock washing
The combo variants in this family use a flat microfibre pad with no dock wash cycle. The Roomba 105 Combo, Roomba Combo Essential, and Roomba Combo 2 Essential all rely on hand washing between sessions. Without automatic pad cleaning, soil accumulates across repeated runs and the pad becomes a residue spreader rather than a mopping tool if washing is skipped across several consecutive sessions. Hand-washing the pad after every session, or at minimum after every second session, is a core part of the maintenance routine on this platform, not an optional step. iRobot’s guidance for the mop pad is a replacement after approximately 30 hand-wash cycles, after which absorbency begins to decline noticeably, so a record of washing cycles helps time replacement accurately. The Roomba Combo Essential permits water-only mopping with no cleaning solution in the reservoir, while the Roomba Combo 2 Essential additionally allows a compatible cleaning solution to be added.
Models in this series compared
| Model | Suction | Mop system | Dock | Brush type |
|---|---|---|---|---|
| Roomba 105 Combo |
Up to 7,000 Pa | Flat microfibre pad, Carpet Detect lift | Charge-only | Multi-surface rubber roller |
| Roomba 105 Combo + AutoEmpty Dock |
Up to 7,000 Pa | Flat microfibre pad, Carpet Detect lift | AutoEmpty (disposable bag, rated up to 75 days) | Multi-surface rubber roller |
| Roomba 105 Vac |
Up to 7,000 Pa | None (vacuum only) | Charge-only | Multi-surface rubber roller |
| Roomba 105 Vac + AutoEmpty Dock |
Up to 7,000 Pa | None (vacuum only) | AutoEmpty (disposable bag, rated up to 75 days) | Multi-surface rubber roller |
| Roomba Combo Essential |
3-level adjustable | Flat microfibre pad, water only, app keep-out zones for carpet avoidance | Charge-only | Multi-surface rubber roller |
| Roomba Combo 2 Essential |
4-level adjustable | Flat microfibre pad, compatible cleaning solution permitted, app keep-out zones for carpet avoidance | AutoEmpty (disposable bag, rated up to 60 days) | Multi-surface rubber roller |
LiDAR-navigated 105-series models at 7,000 Pa
The Roomba 105 Combo, Roomba 105 Combo + AutoEmpty Dock, Roomba 105 Vac, and Roomba 105 Vac + AutoEmpty Dock are the most capable robots in this maintenance family. ClearView LiDAR navigation produces efficient, systematic cleaning paths that reduce side-brush wear compared to reactive models, but the higher suction shortens filter service life somewhat. iRobot’s baseline filter guidance across the whole family is three to six months; under daily residential use at 7,000 Pa on maximum mode, tightening that to two to three months is the site’s recommended maintenance practice rather than a figure iRobot publishes directly. Under lighter use, or with the robot set to Eco suction, staying nearer the three-month mark is a reasonable upper limit. The retailer SKU Roomba Q352020 shares this platform’s specification as the AutoEmpty-equipped vacuum-only variant, based on consistent retailer listings rather than a dedicated iRobot product page for this exact code, so this classification carries moderate rather than full confidence. The retailer SKU Roomba Q311000 is treated in this guide as the charge-only vacuum-only equivalent, based on consistent retailer listings rather than a dedicated iRobot product page for that exact code, so this classification is likewise moderate rather than full confidence. The 105 models with an AutoEmpty dock require an additional maintenance interval for the dock bag, discussed in the AutoEmpty dock bag section below.
Entry-level Essential combo models
The Roomba Combo Essential and Roomba Combo 2 Essential use reactive navigation, which means they follow a wall-following and random-bounce cleaning pattern rather than a LiDAR-mapped grid. This results in higher side-brush wear relative to the 105 series, because the robot contacts walls and furniture more frequently. It also means the 0.4-litre bin fills sooner in practice, because reactive navigation revisits already-cleaned areas more often than mapping navigation does. The Combo Essential offers three adjustable suction levels and ships with a charge-only dock, so the bin requires manual emptying after every run. It mops with water only, with no cleaning solution permitted. The Combo 2 Essential steps up to four adjustable suction levels, runs on a 2,600 mAh lithium-ion battery for up to 120 minutes, permits a compatible cleaning solution in its water reservoir, and adds an AutoEmpty dock measuring approximately 297 by 267 by 295 millimetres and rated for up to 60 days between bag changes, shifting the emptying responsibility to a periodic bag change rather than a daily manual task.
Replacement parts and service intervals
Multi-surface rubber roller
Clean the roller weekly by removing it from the chassis, cutting any hair that has collected at the end caps with a small pair of scissors, then popping both end caps off and clearing any material trapped in the bearing holes with a toothpick or a fine cleaning tool. The rubber fins themselves do not require scrubbing, but checking between the fin sections for compacted grit once a month is worthwhile in homes with sand or fine particles tracked in from outside. As a site maintenance practice rather than a published iRobot interval, replacing the roller roughly every six months under daily residential use is a sensible guideline for the Roomba 105 Combo, Roomba 105 Vac, Roomba Combo Essential, and Roomba Combo 2 Essential. Replace sooner if the rubber fins show visible splitting, cracking at the edges, or any permanent deformation that prevents them from making firm contact with the floor surface. A roller that does not spin freely by hand after cleaning is binding on trapped material further inside the bearing, and forcing it back into service creates audible strain on the brush motor within the next few runs. iRobot does not yet list this roller as a standalone part for any model in this range, so every link above leads to that model’s full Maintenance Set, which includes the roller as one of its components.
HEPA filter
Tap the filter firmly on all four sides over a waste bin every one to two weeks to clear surface debris from the pleats. iRobot’s guidance for the entire Roomba Essential and Roomba 105 lineup is explicit on one point: do not wash the filter under water. Water-washing degrades the pleat structure and destroys the electrostatic charge responsible for capturing fine particulate, and a washed filter that looks clean is substantially less effective than a dry but visually grey one. iRobot’s published replacement interval is three to six months for every model in this family. Under daily use at 7,000 Pa maximum suction on the Roomba 105 Combo + AutoEmpty Dock, Roomba 105 Combo, Roomba 105 Vac + AutoEmpty Dock, and Roomba 105 Vac, tightening that to two to three months is the site’s recommended maintenance practice rather than an iRobot-stated figure. On the Roomba Combo Essential and Roomba Combo 2 Essential at their lower adjustable suction settings, the same two-to-three-month practice guideline remains sensible under daily use, though light-use households can reasonably stay closer to the official three-to-six-month baseline. A filter that has shifted from white to a uniform mid-grey across the pleat surface has exhausted its capacity and should be replaced without waiting for further discolouration. No individual filter listing exists yet for any model in this family, so each link above points to that model’s full Maintenance Set, which includes the filter.
Side brush
Clear hair from around the base of the side brush post weekly. Hair wraps the shaft at the junction between the post and the chassis rather than the bristle tips, and if left more than two weeks it migrates progressively deeper into the drive housing. On the Roomba Combo Essential and Roomba Combo 2 Essential, which contact walls more frequently than LiDAR-navigated models, the side brush also experiences more lateral flexion, accelerating bristle splay. As a general site maintenance guideline, replacing the side brush every three to six months across all models in this family is sensible, with the shorter end of that range applying in homes with pets or long-haired occupants. Inspect the bristle shape regularly: once the bristles no longer return to their original curved sweep after the robot has been idle, edge pickup on both hard floors and carpet edges degrades even though the brush appears intact at a glance. The side brush is not yet listed as a separate part for any of these models either, so its links above go to the same full Maintenance Set.
Mop pad (combo models only)
The combo variants do not have a dock wash cycle, so the pad must be hand-cleaned between uses. Wash under warm running water with a small amount of mild liquid detergent after every cleaning session, or at minimum after every second session. Wring firmly and air-dry fully before re-attaching, as a damp pad installed on the robot will drag additional moisture across sealed floors and can cause the adhesion clip to slip mid-run. On the Roomba 105 Combo, Roomba Combo Essential, and Roomba Combo 2 Essential, iRobot’s guidance is to replace the pad after approximately 30 hand-wash cycles; under daily use that typically works out to roughly six to eight weeks, though households washing after every second session rather than every session will reach that cycle count sooner. A pad that is visibly greyed and no longer rinses clear has reached the end of its absorbency. A pad that looks clean but has hardened from repeated washing without thorough rinsing of detergent residue will smear residue rather than lift it on the next mop pass. No model in this family has its own individually listed mop pad yet, so the model links above lead to the full Maintenance Set, which includes the pad.
AutoEmpty dock bag
Applies to the Roomba 105 Combo + AutoEmpty Dock
, Roomba 105 Vac + AutoEmpty Dock, and Roomba Q352020 (grouped here on retailer-listing evidence rather than a dedicated iRobot page for this exact code, so this grouping carries moderate rather than full confidence). All three use a dock rated by iRobot for up to 75 days of emptying cycles under typical use, as do their retailer SKU equivalents Y351040 and Y351240, which share the same 75-day rated dock. The Roomba Combo 2 Essential and its retailer SKU equivalents Y051040 and Y051240 use a different AutoEmpty dock rated for up to 60 days rather than 75, so treat that lower figure as the ceiling for the Combo 2 Essential family specifically rather than applying the 75-day figure across the board. In both cases the actual interval depends heavily on floor traffic and pet coverage. In households with pets or multiple occupants, a six-to-eight-week replacement cycle is more practical than either rated ceiling. Under light use in a single-occupant home with hard floors and no pets, the rated ceiling for each dock is achievable. Replace the bag proactively rather than waiting for the dock indicator to flag it full: a bag that reaches capacity mid-emptying cycle leaves residual material in the robot’s bin between sessions and reduces suction quality on the following run. The dock suction port at the base of the robot should be wiped monthly with a dry cloth to clear the fine dust ring that accumulates around the seal from repeated docking. The retailer SKU variants Y311040 and Y311240 are not covered in this section: as explained in the How the models differ section below, they are grouped with the base charge-only Roomba 105 Combo and have no AutoEmpty dock or dock bag to service.
Maintenance at a glance
| Component | Clean | Replace |
|---|---|---|
| Multi-surface rubber roller | Weekly | Every 6 months (site maintenance practice) |
| HEPA filter (Roomba 105 models) | Every 1 to 2 weeks | Every 3 to 6 months per iRobot; 2 to 3 months under heavy use (site practice) |
| HEPA filter (Roomba Essential models) | Every 1 to 2 weeks | Every 3 to 6 months per iRobot; 2 to 3 months under heavy use (site practice) |
| Side brush | Weekly | Every 3 to 6 months (site practice) |
| Mop pad (combo models) | Hand-wash after every use | About every 30 hand-washes, roughly 6 to 8 weeks under daily use |
| AutoEmpty dock bag (105-series dock) | Not applicable | Up to 75 days; 6 to 8 weeks in households with pets |
| AutoEmpty dock bag (Combo 2 Essential dock) | Not applicable | Up to 60 days; 6 to 8 weeks in households with pets |
| LiDAR window (Roomba 105 only) | Weekly | Not applicable |
| Dock suction port seal | Monthly | Not applicable |
Common problems and their maintenance causes
Robot signals a roller stall shortly after starting
Compressed hair under the end caps of the rubber roller is the most frequent cause of this symptom on every model in this family. Remove the roller, pop both end caps off, and clear material from inside the bearing holes with a toothpick. A roller that still does not spin freely by hand after cleaning the caps is binding on material deeper inside the bearing itself. On the Roomba Combo Essential and Roomba Combo 2 Essential, a weekly rather than fortnightly cap check is worthwhile in households with pets. If the stall persists after a thorough cap and bearing clean, the roller itself may have accumulated debris inside its internal cavity, and replacement is the correct next step. iRobot does not publish a named or numbered error code for this behaviour on this budget tier: the robot simply pauses and signals through the app or an indicator light, or continues at reduced torque, so treat the symptom itself as the diagnostic cue rather than looking for a specific code. As with the roller section above, these links go to each model’s full Maintenance Set, since no model has its own individually listed roller yet.
Suction noticeably weaker than usual
Inspect the filter first. A filter that has shifted from white to uniform mid-grey is at or past its service limit, and replacement restores rated airflow immediately. If the filter looks relatively clean but suction is still reduced, check the dustbin for a blocked inlet port. A fine ring of compacted dust sometimes accumulates around the port inside the bin and narrows the airflow path without visibly filling the bin itself. On the Roomba 105 Combo + AutoEmpty Dock and Roomba 105 Vac + AutoEmpty Dock, also confirm the dock bag is not at capacity: a full bag prevents complete bin transfer, leaving residual material in the robot’s dustbin that reduces suction on the following run even though the bin appears partially empty in the app. If both filter and bin are clear, check the side brush post for hair reaching into the motor shaft, as the resulting drag slightly reduces available airflow from the main motor by increasing overall current draw.
Mop pad leaves streaks or damp patches across the floor
A pad that has hardened from repeated hand-washing loses absorbency at the centre contact line first. That centre strip no longer fully wets the floor, producing a dry or streaky band down the middle of the mopped path. If this occurs on a newly installed pad rather than an old one, confirm that the pad is clipped flat against the robot’s underside and is not bunched or folded at one edge, as an uneven install produces the same symptom as pad degradation. On the Roomba Combo Essential, also confirm the water reservoir is adequately filled, as this model’s water-only reservoir releases moisture at a fixed rate and a low reservoir reduces moisture at the pad’s trailing edge before the run is complete. On the Roomba Combo 2 Essential, whose reservoir also accepts a compatible cleaning solution, the water release can be adjusted in the iRobot app, and setting the flow level one step higher clears most streaking on tile and sealed wood floors. As with the mop pad section above, these links go to each model’s full Maintenance Set, since no model has its own individually listed mop pad yet.
Auto-empty fails to clear the robot’s dustbin
Applies to the Roomba 105 Combo + AutoEmpty Dock, Roomba 105 Vac + AutoEmpty Dock, and Roomba Combo 2 Essential, along with the Roomba Q352020 and the retailer SKU variants that share each of these docks. The most common cause is a dock bag that has reached capacity and can no longer accept material. Replace the bag first. If the transfer still fails, wipe the docking port at the base of the robot and the mating seal on the dock tower: a fine ring of compacted dust builds up around the seal from hundreds of docking cycles and breaks the vacuum path the auto-empty system requires to complete a transfer. Once both surfaces are clean, trigger a manual auto-empty from the iRobot app to confirm the transfer completes in a single uninterrupted cycle. If the transfer takes multiple cycles or the app reports a partial empty, the dock bag chamber’s internal suction path may have a secondary blockage that requires a brief inspection of the bag opening seal.
Robot avoids or hesitates at dark-coloured floor areas
On the LiDAR-navigated Roomba 105 Combo, Roomba 105 Combo + AutoEmpty Dock, Roomba 105 Vac, and Roomba 105 Vac + AutoEmpty Dock, a dusty LiDAR turret reduces mapping accuracy and the robot sometimes interprets dark rugs as drop-offs. Wipe the LiDAR turret cover with a dry microfibre cloth weekly. Simultaneously clean the cliff sensors on the robot’s underside with a dry cloth, as sensor dust is the primary cause of false drop-off detection regardless of navigation type. On the reactive-navigation Roomba Combo Essential and Roomba Combo 2 Essential, cliff sensor contamination is the only maintenance cause of this symptom, as there is no LiDAR window to check.
Battery run-time has shortened noticeably
Before concluding that the battery has aged, rule out mechanical drag across all three consumable components. A roller with compressed hair at the caps, a side brush post with a wrapped shaft, and a partially loaded filter each increase current draw independently, and all three together can noticeably cut effective run-time compared with a fully serviced robot. Clear each of those in sequence, then run a full timed cleaning session to establish the post-service run-time. If all three are fully serviced and the robot consistently finishes a standard run significantly sooner than its rated operating time, the battery is likely approaching end of service life. The Roomba 105 Combo runs on a 3,000 mAh LFP battery, and the Roomba Combo 2 Essential runs on a 2,600 mAh lithium-ion battery rated for up to 120 minutes. As with lithium-ion batteries generally in this class, capacity diminishes gradually with age and charge cycles, and a battery nearing the end of its service life typically shows a noticeable drop in run-time rather than a smooth decline.
Mopping continues onto carpeted areas
On the Roomba 105 Combo and Roomba 105 Combo + AutoEmpty Dock, the Carpet Detect feature, exclusive to the 105 series, lifts mopping automatically when the robot crosses onto carpet by reading an optical sensor on the underside. A smudged or dusty lens prevents the transition from registering, and the pad continues wiping across carpet fibres. Wipe the carpet detection sensor lens with a dry cloth and run a test session on the same carpet edge to confirm the lift activates correctly. On the Roomba Combo Essential and Roomba Combo 2 Essential, which have no Carpet Detect sensor, carpet avoidance relies entirely on keep-out zones drawn in the iRobot app, so the correct fix for carpet mopping on those models is a map update in the app, not sensor cleaning.
What consistent maintenance protects over time
Every consumable in the Roomba Essential family interacts directly with at least one other. A clogged filter increases the suction motor’s current draw and operating temperature, accelerating motor wear over the subsequent months. A rubber roller binding on end-cap hair forces the brush motor to work at elevated torque on every pass, which simultaneously reduces cleaning effectiveness and shortens brush motor life. A side brush post that has hair wrapped down into the drive shaft increases drag on the wheel motor on the same side, reducing battery efficiency per session. A mop pad past its service life spreads residue rather than lifting it, which then loads the filter faster on the following vacuum pass as the dried residue becomes airborne particles. Because the Essential tier lacks the redundancy features of flagship platforms such as dock-side pre-filtration and automatic pad washing, the failure of a single component propagates to the next within a few weeks. Maintaining the core components together, the roller, filter, side brush, mop pad where fitted, and dock bag on AutoEmpty variants, on a consistent schedule keeps each one within its operating parameters and typically adds meaningful useful service life to the robot compared with reactive-only maintenance.
The Plus.Parts® Maintenance Set covers the full service scope for iRobot Roomba Essential and Roomba 105 robots: multi-surface rubber roller, HEPA filter, side brush, and mop pad in a single order. It is designed as a functional Plus.Parts® alternative to the original iRobot consumable set, built to the same fit and performance specifications. Keeping a complete set on hand ensures that no single component is extended past its replacement interval while waiting for a delivery.
How the iRobot Roomba Essential models differ
The 16 models and retailer variants in this family share a single maintenance architecture because they converged on identical core consumable geometry: a multi-surface rubber roller with the same end-cap profile, the same screw-in HEPA filter form factor, the same clip-on side brush mount, and the same flat microfibre pad attachment for combo variants. Within that shared architecture, the practical differences that affect the maintenance routine come down to suction level, dock type, navigation method, and whether the robot includes a mop pad. The sections below describe each sub-family and note where the maintenance routine diverges, including two corrections to how certain retailer SKU variants are grouped compared with earlier guidance.
Roomba 105 Combo family
The Roomba 105 Combo is the vacuum-and-mop flagship of this maintenance family. It uses ClearView LiDAR navigation to map and systematically clean the home, reaches up to 7,000 Pa of suction on maximum mode, runs on a 3,000 mAh LFP battery, measures approximately 336 by 335 by 104 millimetres, and includes a Carpet Detect sensor that lifts the mop pad automatically at carpet transitions. The maintenance routine adds a weekly LiDAR turret wipe and a carpet detection sensor clean to the standard roller, filter, side brush, and mop pad schedule. The Roomba 105 Combo + AutoEmpty Dock is the same robot paired with an AutoEmpty dock rated for up to 75 days between bag changes. The retailer SKU variants Y351040 and Y351240 pair the same 105 Combo hardware with that same AutoEmpty dock and carry their own listed dust bag, linked in the AutoEmpty dock bag section above, for ordering a replacement independently of the full Maintenance Set. The retailer SKU variants Y311040 and Y311240 are grouped here with the base, charge-only 105 Combo rather than with the AutoEmpty-equipped variants: neither carries a listed dust bag in the current catalogue, unlike the Y351000-series codes above. No official iRobot page names these two EU-market codes directly, so treat this grouping as a reasoned placement rather than a manufacturer-confirmed one, and assume a charge-only dock with manual bin emptying for both.
Roomba 105 Vac family
The Roomba 105 Vac is the vacuum-only sibling of the 105 Combo. It shares the same 7,000 Pa suction, ClearView LiDAR navigation, rubber roller, HEPA filter, and side brush, but has no mop pad and no Carpet Detect sensor. The maintenance routine is consequently shorter: roller, filter, and side brush only, plus the weekly LiDAR turret wipe. Filter replacement follows the same iRobot baseline of three to six months as the Combo at equivalent suction settings, tightened to two to three months as site practice under heavy use. The Roomba 105 Vac + AutoEmpty Dock adds the same 75-day-rated AutoEmpty dock as the Combo AutoEmpty variant. The retailer SKU Roomba Q352020 is treated in this guide as the AutoEmpty-equipped variant of the Roomba 105 Vac, sharing the same 75-day dock rating and carrying its own listed dust bag, based on consistent retailer listings rather than a dedicated iRobot page for this exact code, so this classification carries moderate rather than full confidence. The retailer SKU Roomba Q311000 is treated as the charge-only variant of the Roomba 105 Vac rather than as part of the Combo Essential family, based on multiple independent retailer listings for this code; iRobot has not published a dedicated page for this exact code, so this classification carries moderate rather than full confidence. Both Q311000 and the base Roomba 105 Vac follow an identical maintenance routine with no dock bag to service.
Roomba Combo Essential family
The Roomba Combo Essential is the entry-level vacuum-and-mop model in this family, using reactive navigation and three adjustable suction levels. Its mopping system is water only, with no cleaning solution permitted in the reservoir. It ships with a charge-only dock, so the bin requires manual emptying after every run, and there is no dock bag to service. The mop pad maintenance schedule follows the same iRobot guidance as the 105 Combo: hand-wash after every use and replace after approximately 30 hand-washes. Carpet avoidance on this model relies on keep-out zones set in the iRobot app rather than an active optical sensor, so any change to the room layout requires a map update before mopping. Retailer SKU variants Y011040 and Y011240 are the same robot sold under retailer-specific codes, with the same three adjustable suction levels and water-only mopping, and use the same part set as the Combo Essential.
Roomba Combo 2 Essential family
The Roomba Combo 2 Essential is the second-generation entry-level combo model and adds two key practical improvements over the first-generation Combo Essential: a fourth adjustable suction level and an AutoEmpty dock rated for up to 60 days of emptying cycles, measuring approximately 297 by 267 by 295 millimetres. It also permits a compatible cleaning solution in its water reservoir, unlike the water-only Combo Essential, and runs on a 2,600 mAh lithium-ion battery for up to 120 minutes. The same reactive navigation, rubber roller, HEPA filter, side brush, and flat mop pad from the Combo Essential are otherwise retained, so the core consumable schedule is identical. The addition of the AutoEmpty dock introduces the 60-day-rated dock-bag replacement interval, alongside the need to keep the dock suction port seal clean. Retailer SKU variants Y051040 and Y051240 are the same robot sold under retailer-specific codes, share the same four-level suction and 60-day AutoEmpty dock, and carry their own listed dust bag, linked in the AutoEmpty dock bag section above.
Type reference
The maintenance set code below applies to all 16 models in this family. The dust bag code applies only to the 8 models fitted with an AutoEmpty dock that carries its own separate dust bag listing: the Roomba 105 Combo + AutoEmpty Dock, Roomba 105 Vac + AutoEmpty Dock, Roomba Combo 2 Essential, and Roomba Q352020, plus the retailer SKU variants Y051040, Y051240, Y351040, and Y351240.
| Type | Alternative type | Retail type |
|---|---|---|
| 4837325 | — | — |
| 4849916 | — | — |