LC-3 · Consumer Risk Bulletins

Kinematic Risk Consumer Bulletin

# Kinematic Risk Consumer Bulletin

**LRRK Watch / Open-Source Intelligence** — Consumer kinematic electronics. Monthly filing.

**Issue type.** Monthly KRCB (retrospective). LC-3 (Consumer). Calendar month only. Thin months stay thin. Not the weekday 24–48h poll.

| Field | Value |
| --- | --- |
| Collection cutoff | 31 March 2023 |
| Window | 1–31 March 2023 |
| Written | 19 August 2026 (retrospective reconstruction) |
| Data label | Open-source intelligence // LRRK analytic product // retrospective monthly filing |
| Handling | Public-source material. Image rights require separate verification before publication. Retrospective reconstruction from contemporaneous public records. |
| Scope | Consumer kinematic electronics only (home, yard, companion, educational). |
| Classes in frame | Robot vacuums / mop combos · robotic lawn mowers · window-cleaning robots · pool-cleaning robots · robot pets / companion animals · social / desk companions · educational / programmable kits · robotic litter boxes · security / home patrol robots · consumer robotic arms · elder-care / assistive companions · kitchen / food-prep robots · toy / entertainment robots · niche outdoor / garden robots · emerging general-purpose or humanoid home robots |
| Spine | CPSC, Health Canada, EU Safety Gate, UK OPSS, METI, BAuA, manufacturer recall pages, named newsrooms, dockets. |
| Color | Message boards, consumer forums, and Reddit — annotated context only. Never Fact without a reputable primary. |
| Signals graduated | 1 |

## Executive read

### BLUF

The year’s first official consumer-kinematic safety page is a yard dock, not a Roomba. STIHL recalled about 2,700 iMOW docking stations after a moisture short on the PCB: eight thermal overheats including two fires, no injuries.

### Key judgments

1. **[Assessment — High confidence]** CPSC recall 23-158 (16 March 2023) is an official fire file on an outdoor robotic-mower dock, not on the cutting deck.
2. **[Assessment — High confidence]** The official injury line is zero. Eight thermal events including two fires are the stated incident count.
3. **[Inference — Moderate confidence]** Moisture on an outdoor dock PCB is a Control Fabric failure that will recur on other yard and pool charge paths.


### Analytic labels
- **Fact** — verified reporting or primary record
- **Assessment** — analytic judgment
- **Inference** — reasoned but not directly observed
- **Uncertainty** — unresolved information gap

### Source grades
- **A1** — authoritative primary record / directly confirmed
- **B1–B2** — generally reliable and corroborated
- **C3** — useful but requires caution (typical for forums)

---

## 01. STIHL iMOW docks — moisture shorts the PCB

*Event / publication dates: 16 March 2023 (CPSC 23-158; STIHL US notice)*

**Product class.** Robotic lawn mowers (dock electrical)

**Verified record — [Fact — A1]** STIHL Incorporated recalled docking stations sold with autonomous iMOW mowers, models **RMI 422 / 522 / 632** (STIHL US also prints PC-L suffixes). Hazard: the dock’s printed circuit board “can short circuit when exposed to moisture, posing a fire hazard.” **About 2,700** units. Sold at authorized US dealers January 2017–July 2022 for $1,400–$2,600 (mower + dock). Serials: iMOW 437478902–443268968; dock 437475057–443268971. Remedy: free at-home repair; stop using the dock. Incidents: **eight** thermal overheats including **two** fires. **No injuries.** Manufacturer STIHL Tirol GmbH (Austria); importer STIHL Incorporated, Virginia Beach. Primaries: [CPSC](https://www.cpsc.gov/Recalls/2023/STIHL-Incorporated-Recalls-Docking-Stations-Sold-with-STIHL-iMOW-Robotic-Lawn-Mowers-Due-to-Fire-Hazard) (HTML often blocked in later collection; facts corroborated on the manufacturer page and official mirrors), [STIHL US](https://www.stihlusa.com/en/support-events/safety/recalls/imow-docking-station), [NY DHSES mirror](https://www.dhses.ny.gov/stihl-incorporated-recalls-docking-stations-sold-stihl-imow-robotic-lawn-mowers-due-fire-hazard). No matching Health Canada page was found in this window.

**Threat landscape.** An outdoor lithium charge dock whose sense of “dry enough to energize” fails in weather. The blade is not the named hazard. The physical-harm record on the page is property-and-thermal, not injury.

**Forum / community notes.**
- none found.

**Intelligence assessment.** [Assessment — High confidence] This is the first 2023 official consumer-robot fire page. [Inference — Moderate confidence] Yard docks are the live US thermal Watch, not indoor vacs. [Uncertainty] Whether any of the eight events were in occupied structures is not stated.

**Opportunity.** A Health Canada or EU twin, or a named property-damage figure, would tighten the map.

**LRRK relevance.** Lab (dock PCB / ingress). Control Fabric (charge-path interlock in weather). Watch: other outdoor docks.

**Confidence.** High on the CPSC/STIHL hazard sentence, unit count, and 8/2/0 incident line. Low on unpublished geography of the eight events.

---

## Forward indicators

1. Any Canada / EU twin of the iMOW dock file.
2. First 2023 official step on Amazon–iRobot (CMA invitation is 6 April).
3. Any pool-robot charge-path notice.
4. Any US CPSC robot-vac thermal recall.
5. Any named pediatric robotic-mower case.

> **Collection integrity.** Politico’s 20 March 2023 report that FTC staff were “leaning toward” suing to stop Amazon–iRobot is unnamed-source color and is **not** graduated as an official FTC action. No Health Canada STIHL twin was found. No other March CPSC/OPSS/Safety Gate consumer-robot page was found. CES leftovers and product launches were excluded.

*LRRK — security assurance for systems that sense, move, and act.*

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