REASSESSED 2026.09.02

Pentair

Pentair Warrior SE

Name: Pentair Warrior SE
Brand: Pentair

A corded workhorse without automation or mapping. Pentair Warrior SE handles systematic floor and wall cleaning on standard pools through brush action alone.

PriceNo list priceRetail price not tracked

Autonomy Ladder

Why Level II.

One five-rung scale, every category, from acting only on command to working unsupervised anywhere.

VGeneralized AutonomyAny task, any setting. No consumer robot has reached it.
IVEnvironmental AutonomyCopes with everyday clutter and frees itself, shown by independent testing.
IIIConditional AutonomyFinishes whole jobs in familiar spaces; struggles at the edges.
To reach Level IIIMost sessions finish without intervention. Rescue is occasional, not routine.
IIAssisted AutonomyThis robot

Pentair Warrior SE runs preset routines on its own, and the owner is its recovery system.

Navigation and control

Random floor search pattern; dual brush contact navigation.
Why this level
- The robot follows a predetermined random search pattern without environmental mapping or obstacle detection.
- Dual brush motors provide consistent contact; no adaptive pathfinding qualifies this as Level II.
Autonomy dimension 40 / 100 · 2 sources reviewed
IManual AutomationOne action on command; no independent operation.

How we assign a level →

Human Readiness

Discontinued.

One question: what does buying this robot today walk you into? The state is computed from the record, and recomputed daily.

DiscontinuedThis robot

Pentair Warrior SE is discontinued. Remaining listings are old stock at uncertain prices, which no buying-today tier describes.

Listings under Availability are shown for reference, not as a purchase path.

On the record

2 sources reviewed

The scale, for reference

Ready NowAssessed, with a clean record on file. A successor may be shipping; the page says so when it is.
New to MarketOn sale under 90 days; the ownership record is still forming.
WaitA successor is announced and has not shipped; re-read the decision when it arrives.
Known IssuesDocumented problems stand on the record; read the case before buying.

How we assess readiness →

Robovations Score

How this number was reached

65of 100

CapableAt or above 39% of the 436 robots we scoreand 56% of the 64 scored robot pool cleaners

DeficientLimitedCapableStrongExemplary

Measured on 7 of the 9 inputs14% not counted

Our assessment did not establish an independent source for edge-case recovery, operating envelope on this machine, so those inputs are left out of the score rather than guessed at, and the rest re-weighted to fill the space. A gap in what we have been able to verify is not evidence against the robot. Where a whole pillar has nothing measured, we publish no number at all.

What moved itpoints gained or lost against a typical robot

Carried by

Field failure rate88+2.9
Consumables80+0.9
Support longevity67+0.5

Held back by

Software stability33−4.5
Coverage and navigation45−2.5
Routine maintenance62−0.6

Capability40% of the score63What it does without you.

Task completion16% of the score75

Evidence

A Trouble Free Pool owner one week in reports the Warrior SE cleans everywhere including the two dead spots a previous suction cleaner never reached. It finishes the pool on a cycle with the owner retrieving it and emptying the cartridge each run.

Coverage and navigation10% of the score45

Evidence

The r/swimmingpools owner thread records adequate early coverage with a couple of small areas left, then coverage decaying over the season until a solid 25 percent of the pool bottom was untouched. There is no retained map between runs, so the pattern is re-established every cycle and degrades with wear.

Edge-case recoverynot countedno source verified25

Evidence

At the found-stalled anchor. No obstacle detection, no status output and no remote monitoring, so nothing reports a stall. The record's cable-snag guidance is entirely manual and safety-framed: unplug the power supply, do not reach into the water while the unit is running, free the cable by hand. There is no described detection, unbinding or resume behavior of any kind.

Operating envelopenot countedno source verified44

Evidence

A narrow envelope. In-ground only and sized for 15,000 to 30,000 gallons, oversized for anything under 5,000, with heavy leaf load explicitly outside it and requiring pre-skimming. Water chemistry is unanswered in the direction that matters: the record states Pentair models are typically chlorine-designed and tells the owner to confirm saltwater use with support. Siting adds a hard constraint, a GFCI receptacle at least 12 feet from the pool edge with extension cords prohibited.

Dependability40% of the score64Whether it keeps doing it.

Field failure rate16% of the score88

Evidence

Scored on the platform rather than the SKU, which the record supports: Pentair points Warrior SE owners at the Prowler 920 as the current equivalent and the two share a manual and a replacement-parts sheet, and retail listings identify the unit as a Maytronics Dolphin build. That platform carries a multi-year record with no recall and no documented job-stopping mode. Held below the 920's own figure because this SKU has no independent evidence at all: its single cited source is manufacturer documentation marked pending.

Software stability14% of the score33

Evidence

The Marina Pool Spa dealer page, which reprints Pentair's own product paragraph and spec table under SKU PF 360494, lists 'Bluetooth Remote Capable: NO' and gives an onboard weekly timer as the only programmability, so the unit has no connectivity and no field update path. SwimmingPoolA2Z claims smartphone Bluetooth control, but that page is an affiliate rewrite that argues from 'a 5-star review on Amazon', and the dealer's SKU-level spec is the better record of what the vendor shipped.

Support longevity10% of the score67

Evidence

The model itself is discontinued and remaining listings are closeout stock, but the parts commitment is real and documented: Pentair keeps the Warrior SE on a shared replacement-parts sheet with the Prowler 920, an in-catalog model, so brushes, screens, cable assemblies and power supplies stay orderable through the dealer network. No replacement interval and no price is published for the filter screens, and no software support window applies.

Ownership burden20% of the score69What it asks of you.

Routine maintenance12% of the score62

Evidence

Per cycle, and the manual says per cycle rather than weekly: lift 19.8 lb out of the water, pull the top-loading basket, empty it and rinse the screens, and take the unit out before anyone swims. Monthly means inspecting both brush assemblies and checking the swivel cable and the supply's line cord for cuts. A heavy unit, with 60 ft of cable handled every run and indoor storage each winter.

Consumables8% of the score80

Evidence

No cartridge and no scheduled purchase: filtration is a top-loading basket carrying reusable screens, and the unit ships with two sets, ultra-fine and spring, so both debris regimes are covered out of the box. Brushes are replaced when the contact surfaces wear through. Held below the top anchor because no Pentair document sets a price or an interval for the screens and the model is closeout, so availability rests on the shared 920 parts sheet.

middle half of the databaseits medianthis robot

Reported, not scoredneither measures how well the robot works

Five-year cost$1,049

lower-middle for robotic pool cleaners; the record carries no MSRP and the machine is closeout, currently listed near $899 without the caddy and around $1,350 bundled with it, so roughly $150 is assumed over five years for brushes and a spare screen set, with no subscription and no scheduled filter purchase

Data postureLocal

Core function needs no account and no network.

What leaves the homeNot documented

Read the full methodology →

FIT CHECK

Will the Pentair Warrior SE work in your pool?

Describe your pool using the controls. Each choice reads the spec sheet for you, flagging where the Pentair Warrior SE is built for your space and where it isn’t.

Pool type

Pool size

Debris load

Coverage you want

See every pool cleaner suited to these conditions

A classification of fit for the conditions you set, not a recommendation. Verdicts describe engineering design intent, not test results.

SPECIFICATION

The full spec sheet.

Manufacturer-published figures, measured against every robot pool cleaner we track.

Dimensional drawing

Key specificationsManufacturer-published

Footprint: 17.2 × 18.9 in · 10.6 in tall
Weight: 19.8 lbs
Cable length: 60 ft•
Power type: Corded✓
Surfaces cleaned: Floor, walls and waterline•

Where it lands · ranked across 75 robot pool cleanersThis robotMedianTypical range

Weight19.8lbs

7.9 lbs46.3 lbs

Near median

Position shows where the figure sits across the tracked category, not a quality judgment.

Official referencesProduct page

OWNERSHIP

Living with it.

Proven brushes and cartridge filter design; corded models show steady long-term durability with minimal firmware risk.

No electronics beyond motor controls reduces failure points. Owner reports describe reliable seasonal service over 3-5 years with proper filter maintenance. Brush wear is gradual and expected.

Owner effort~45 minhands-on per month

Consumables$120replaceable parts / yr

Reliability trend Stableowner-reported arc

What goes wrong · not yet documented independently

The independent record is still forming. Failure modes are listed once an outside source reports them.

Upkeep routine

Monthly12×/yr

Inspect the dual brush assemblies for debris and wear, and check the swivel cable and the power supply's line cord for cuts or abrasion. Do not operate with a damaged cord.

Seasonal4×/yr

Store the unit and the power supply indoors over winter, out of freeze and direct sun.

As neededno fixed schedule

Lift out the top-loading filter basket, empty it and rinse the screens; the manual's instruction is per cycle, not weekly. Remove the cleaner from the pool before anyone swims. · Replace the brushes once the contact surfaces are worn through.

Safety notes

CautionCorded design requires GFCI outlet: Standard household outlet does not provide electrical protection; a GFCI-protected pool circuit is mandatory.

NotePower cord entanglement risk: Cord does not automatically wind; manual cord management prevents snags and reduces operator drowning or injury risk.

RECORD

How the assessment has moved.

Every announcement, release and reassessment behind the current classification.

Coming soon

Just launched

Active updates

Settled

Discontinued

Sep 2026 · AssessmentRobovations Score revised 71 → 65
Sep 2026 · AssessmentRobovations Score recorded at 71 of 100
Aug 2026 · AssessmentRobovations Score withheld: too little independent evidence
Aug 2026 · AssessmentRobovations Score rescored under v4.2: 56 → 65
Aug 2026 · AssessmentRobovations Score rescored under v4.0: 63 → 56
Jul 2026 · AssessmentRobovations Score revised 64 → 63
Jul 2026 · AssessmentRobovations Score recorded at 64 of 100
Jul 2024 · NewsOwner reports flag power cord management as persistent operational constraint

Common questions

What people actually ask.

5 answered

OperationDoes the Warrior SE reach the pool walls and waterline?

Yes. Pentair’s guide describes the unit as scrubbing, vacuuming and filtering the pool including the waterline, and it is sold as covering floor, cove, walls and waterline with high-speed rotary scrubbing.

OwnershipWhat does filtration cost to maintain, and how often?

Filtration runs through a top-loading basket carrying reusable screens, and the unit ships with two sets, ultra-fine and spring. Pentair’s instruction is to rinse the basket after each cleaning cycle. No Pentair document sets a replacement interval or a price for the screens.

OperationHow long does a typical cleaning cycle take?

Most floor coverage occurs within 1.5 to 2.5 hours. Random search means no guaranteed complete coverage; longer cycles may be required for heavy debris.

OperationCan I use the Warrior SE in saltwater pools?

Pentair models are typically chlorine-designed. Saltwater requires corrosion-resistant materials; confirm with Pentair support before use in saltwater systems.

OperationWhat happens if the power cord gets caught on a pool edge?

The cable is not motorized or retractable, so a snag needs attention. Unplug the power supply before handling the cable, and do not reach into the water for it while the unit is running. Remove the cleaner from the pool before anyone swims.

Cite / Embed

Reference the Pentair Warrior SE classification.

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Citation

Robovations. "Pentair Warrior SE: Autonomy Level II (Assisted Autonomy)." Autonomy Ladder™, assessed September 2026. https://robovations.com/robots/pentair-warrior-se/

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Where to next

Three ways to keep going.

For evaluators

Compare with a peer.

See the Pentair Warrior SE and Maytronics Dolphin Nautilus CC Pro side by side: autonomy level, Robovations Score, readiness, and price. Classification, not a verdict.

See the full comparison

Or compare with Maytronics Dolphin Nautilus Titan, Ecovacs Ultramarine P1, Wybot C2.

For browsers

See every Level II.

Every robot we’ve classified at assisted autonomy. Sorted by readiness, score, and price. Filter by category, manufacturer, or release date.

Browse the database

Updated weekly with new entries and reclassifications.

Pentair Warrior SE

Will the Pentair Warrior SE work in your pool?

The full spec sheet.

Living with it.

How the assessment has moved.

What people actually ask.

Other robot pool cleaners we have classified.

Maytronics Dolphin Nautilus CC Pro

Maytronics Dolphin Nautilus Titan

Ecovacs Ultramarine P1

Wybot C2

Reference the Pentair Warrior SE classification.

Three ways to keep going.

Get the next reassessment.

Compare with a peer.

See every Level II.