July 13, 2026 — A consumer has reported a serious safety incident involving a Hart HLPM08VNM 40V lawn mower, alleging a manufacturing defect led to an electrical short and the failure of crucial safety mechanisms. The incident highlights potential fire hazards and concerns regarding the manufacturer’s response to safety complaints.
Product Details
Product: Hart HLPM08VNM
Incident Overview
The consumer reported that on approximately the fifth use of their Hart 40V mower, the unit suddenly shorted out and ceased operation. Upon personal investigation, the user discovered a significant manufacturing flaw: the main power wire from the battery dock was pinched and exposed by a screw during the assembly process. This pinched wire directly caused the short circuit.
The electrical short had a critical impact on the mower’s safety features. The emergency key, designed to immediately cut power, stopped functioning. Furthermore, the bail handle, a primary safety control intended to shut off the mower when released, also failed to operate. Consequently, the only way to power down the mower was by manually removing the battery, posing a significant safety risk during an emergency. The user expressed serious concerns about the potential for the mower to catch fire due to the exposed and shorted wiring.
Following the incident, the consumer contacted HART to resolve the issue, identifying it as a clear manufacturer and safety defect. However, the user reported experiencing weeks of delayed and forced responses, followed by a complete lack of communication for over a week. HART allegedly requested the consumer make a three-hour trip to a service center for diagnosis, despite the clear nature of the defect, or pay for shipping to send the mower in. The consumer has been unable to cut their grass for weeks due to the malfunctioning mower.
Safety Concerns
This incident raises several critical safety concerns:
- Immediate Dangers: The exposed and pinched main power wire creates an immediate risk of electrical shock and a high potential for the mower to catch fire. An electrical short under the hood of a lawnmower, especially one powered by a high-voltage battery, is extremely dangerous and can lead to rapid ignition of surrounding materials.
- Failure of Safety Mechanisms: The incident resulted in the failure of two essential safety features: the emergency key and the bail handle. These components are designed to allow users to quickly and safely shut down the mower, preventing injury in case of an accident, entanglement, or loss of control. Their malfunction leaves the user with no immediate means to stop the blades or power, except by physically removing the battery, which can be difficult and dangerous in an emergency.
- Risk of Uncontrolled Operation: Without functioning shut-off mechanisms, there is a risk of the mower continuing to operate despite attempts to power it down, potentially leading to severe lacerations, amputations, or other impact injuries to the user or bystanders.
- Fire Hazard: The consumer’s fear of a fire is well-founded. A short-circuited electrical component, especially in proximity to a powerful lithium-ion battery, can generate extreme heat, ignite plastic components, and spread rapidly, causing significant property damage or personal injury.
- Property Damage Potential: A mower catching fire could destroy the unit itself, damage nearby property such as lawns, sheds, garages, or even homes.
What Consumers Should Do
If you own a Hart HLPM08VNM 40V lawn mower:
- Immediately Stop Use: If you experience any similar issues, such as the mower shorting out, strange smells, smoke, or failure of safety shut-off features, stop using the product immediately.
- Do Not Attempt Repairs: Do not attempt to repair the product yourself, as this could exacerbate the electrical issue or lead to further injury.
- Remove the Battery Safely: If the mower cannot be shut off via its normal controls, carefully and safely remove the battery to de-energize the unit. Store the battery in a safe, non-combustible location away from flammable materials.
- Check for Visible Damage: While this specific defect is internal, consumers should always visually inspect their power tools for any signs of damage, wear, or loose components before each use.
- Contact the Manufacturer: Reach out to Techtronic Industries North America, Inc. (HART) to report the issue and seek a resolution. Document all communications, including dates, times, names of representatives, and summaries of conversations.
- Report to the CPSC: File a report with the U.S. Consumer Product Safety Commission (CPSC) at www.cpsc.gov or by calling their hotline. This helps track incidents and can lead to recalls if a widespread defect is identified.
Manufacturer’s Response
The incident report indicates that Techtronic Industries North America, Inc. (HART) did provide a response to the consumer’s initial outreach. However, the consumer’s account details a highly unsatisfactory and unhelpful experience. The manufacturer allegedly provided delayed responses, eventually ignored the consumer’s safety concerns, and made unreasonable demands such as requiring a three-hour trip for diagnosis or payment for shipping, despite the clear manufacturing defect and safety risk. This lack of cooperative and prompt action from the manufacturer, as reported by the consumer, is concerning given the severe safety implications of the defect.
Legal Help Available
If you or a loved one has been injured by a defective product or suffered property damage due to a product malfunction, you may be entitled to compensation. The experienced product liability attorneys at Farzan Law understand the complexities of defective product cases and can help you navigate the legal process. Farzan Law is a California based Personal Injury law firm focusing on protecting the rights of those wrongfully injured.
Licensed to practice law ONLY in California.
Contact us today for a free consultation: 424-325-3112
Our legal team has successfully represented clients in product liability cases involving defective appliances, automotive defects, medical devices, and consumer products. We work on a contingency fee basis, which means you don’t pay unless we win your case.
Note: This information is based on incident reports provided by the U.S. Consumer Product Safety Commission. If you find information that is incorrect, please contact us immediately so we can correct the post to reflect accurate information.
Disclaimer: The information provided in this post is not intended to be legal or medical advice. This article is based on publicly available incident reports. The incidents mentioned have not necessarily been independently verified or adjudicated.