Robot Mower Warranties Compared: What Eight Brands Actually Cover

A robot mower spends its life outdoors, unsupervised, running over the one part of your property most likely to hide a rock. Warranty terms matter more here than in almost any other consumer robot category. They are also, across every brand examined, considerably narrower than the number on the box.

This comparison is built from manufacturer warranty documents rather than marketing pages. Where a brand does not publish a term, that is reported as a finding rather than filled in.

Headline terms

The exclusions are where the coverage actually lives

Husqvarna publishes the most detailed policy of any brand here, and it is also the most restrictive. Its 2026 dealer warranty document sets Automower at two years, and then narrows it substantially:

• The battery has no separate warranty. Husqvarna's battery warranty sections explicitly exclude robotic mowers, so the pack sits under the plain two-year unit term.
• Improper installation voids coverage — stated directly: "Machine problems resulting from an improper installation are not covered under the warranty."
• Aftermarket boundary wire voids coverage. "Husqvarna boundary and guide wire must be used. No other aftermarket wire is approved."
• No rental coverage at all, and reduced or no warranty for commercial or non-residential use.
• Non-transferable. Auction and pawn-shop purchases are sold as-is. Online purchases qualify only if the buyer can show the seller was an authorised dealer.
• You pay freight. "Any costs to transport or ship the product are your responsibility."

There is a service-call allowance — one complimentary trip charge per Automower at $0.75/mile — but it is capped at $50, which will not cover a dealer visit in much of the US.

Worx advertises three years, conditional on registering within 30 days; miss it and the term is 24 months. Blades are excluded as consumables, and trade or rental use voids coverage. *One unresolved point: the US page indicates batteries and chargers carry the same three years, while other Worx documentation states 12 months for packs and chargers. We could not determine whether this is a regional split or a stale document — confirm before relying on it.*

Mammotion is, on paper, the most permissive: no registration requirement and no explicit commercial-use exclusion, with three-year battery coverage on current models including the LUBA 3 AWD. The catch sits in logistics — Mammotion covers return shipping "unless Mammotion determines that the product is not under warranty after checking the product." You ship first; the company decides afterwards.

EcoFlow offers the longest potential term at 48 months with registration, but service is mail-in only, and units bought from unauthorised sellers are excluded outright.

Two brands do not publish a warranty length

This is worth stating plainly because it is unusual.

Eufy's own warranty-claim page does not state a duration. It directs buyers to "the literature inside its box or on this chart" — meaning a prospective buyer cannot determine the warranty term before purchase from the page dedicated to warranty claims. Dreame's after-sales policy likewise does not surface mower-specific terms.

For Segway Navimow, the Australian site publishes three years on the unit and two on the battery, but the US portal sits behind a model selector that does not expose durations. Treat the 3/2 figures as Australian and unconfirmed for the US.

Service: dealer-gated or ship-and-hope

The two business models split cleanly.

Husqvarna routes everything through authorised workshops. Its premium line goes further — dealers list "Husqvarna EPOS Installation (Dealer Only)" as a product, and CEORA is sold with certified installation. For a satellite-guided or commercial unit, the dealer is not optional.

The direct-to-consumer brands have no named service network. Mammotion's policy points customers to "a service station specified by the customer service team" without naming a US or EU location. EcoFlow is mail-in. Eufy handles replacement centrally.

Neither model is inherently better. The dealer route costs more and moves slower but gives you a human within driving distance. The DTC route is cheaper and can be fast — one owner reported a Luba returning from a repair centre in two days with costs covered — but you are shipping an expensive machine to an address you cannot visit.

What the complaint record shows

Mammotion is the only brand here with a substantial public complaint registry: 15 complaints closed in the last 12 months, 26 over three years at the Better Business Bureau. The texture matters more than the count. One customer who bought two Luba 2 AWD units for $8,998 reported both failing under warranty and being offered 24 replacement blades as compensation rather than replacement. A June 2026 complaint reports 25 days with an unusable in-warranty unit. A recurring theme is app-only support channels and multi-week response gaps.

The counterweight is real and should be stated: Mammotion holds roughly 4 stars across 2,726 Trustpilot reviews. Twenty-six complaints over three years is not a large number for a company shipping thousands of units. The complaints are informative about *how* failures get handled, not about how often they happen.

For the other seven brands, no comparable claim-experience data could be verified. That is a gap in the record, not evidence of good performance.

The risk nobody puts in the warranty: the cloud

Several of these mowers depend on a manufacturer cloud for app control, scheduling and in some cases mapping. That dependency has failed in practice — European Mammotion owners have reported multi-day outages, a Home Assistant integration issue documents the connection breaking when the cloud is down, and Downdetector maintains an outage status page for Mammotion. A lawn mower with an outage tracker is the structural point in miniature.

No warranty in this comparison covers loss of cloud service, and that is the exposure worth thinking hardest about, because the industry has already demonstrated it is real. iRobot — the company that defined consumer home robotics — developed the Terra robot mower, suspended it in April 2020 alongside roughly 70 layoffs, never resumed it, and filed for Chapter 11 in December 2025, passing into foreign ownership. *(The bankruptcy terms are corroborated across multiple outlets; we were unable to read the SEC filing directly.)*

A correction to a common claim while we are here: the robot-mower graveyard is smaller than internet folklore suggests. We specifically checked and could not substantiate that Robomow, Left Hand Robotics, Tertill or Scythe Robotics have been shut down. Robomow still lists eight current models with live support; Tertill's support line is operating; Left Hand and Scythe were acquired by Toro and ASI respectively — exits, not collapses. Consolidation is a support-continuity risk worth noting, but it is not the same as a brand dying.

How to read all this before buying

Three questions decide more than the headline number:

1. Is there a registration deadline? Worx and EcoFlow both change materially on a 30-day action. Set a reminder the day it arrives.
2. Who installs it, and does that decision void the warranty? For Husqvarna this is decisive — wrong wire or a DIY install can end coverage entirely.
3. Where does it physically go when it breaks? A dealer within driving distance and a mail-in address on another continent are very different ownership experiences at year three.

And if you are buying used: on Husqvarna at least, the warranty is non-transferable and void on auction purchases, so a second-hand unit carries no manufacturer protection whatsoever.

For what these machines cost per acre of coverage, see our robot mower cost per acre breakdown, and for how the navigation systems differ, our robot mower navigation comparison. The full category sits under lawn mower robots.

Sources

• Husqvarna 2026 Warranty Policy & Procedure (PDF) — Automower term, battery exclusion, installation and wire conditions, rental/commercial exclusions, transfer rules, trip-charge cap
• Husqvarna warranty portal — authorised-workshop service requirement
• Worx 3-Year Limited Warranty — registration condition, trade/rental and consumable exclusions
• Mammotion after-sales policy — battery terms by model, wearing parts, shipping conditions
• EcoFlow warranty policy — 36/48-month terms, mail-in service, unauthorised-seller exclusion
• Sunseeker warranty policy — unit, charge station and battery terms
• Eufy warranty/exchange page — does not publish a warranty duration
• Mammotion BBB complaint record — complaint counts and dated case details
• Mammotion on Trustpilot — aggregate rating counterweight
• Downdetector — Mammotion status — cloud outage tracking
• TechCrunch — iRobot Terra suspended — April 2020 programme suspension
• Boston Globe — iRobot bankruptcy retrospective — Chapter 11, ownership change, cancelled mower programme
• Robomow product line — evidence the brand remains active