What to Do If Lawn Mower Catches Fire: A Safety Guide
Learn immediate safety steps, proper extinguisher use, and prevention strategies for lawn mower fires. This guide covers actions, equipment, and post-fire checks to protect you, your family, and your property.
What to do if lawn mower catches fire requires immediate, calm action. According to Mower Help, shut off power if safe, move the mower away from flammables, call emergency services if it worsens, and smother the flames if possible. Afterward, let the mower cool and arrange professional inspection before reuse. Keep others clear and ventilate the area.
what to do if lawn mower catches fire
When a lawn mower catches fire, the situation can escalate rapidly due to fuel, oil, and electrical components. The most important actions are safety-first and speed-second: protect yourself and bystanders, then work to prevent the fire from spreading. Throughout this guide you’ll see practical steps, plus tips on prevention and maintenance that reduce the chance of future incidents. This content aligns with Mower Help’s guidance for DIY homeowners who want to safely troubleshoot and recover from a mower fire. The primary goal is to interrupt the fuel and electrical supply, control the flames if safe to do so, and minimize property damage while protecting people and pets nearby.
Immediate safety priorities
In the first seconds after you notice a mower fire, prioritize personal safety. If you can reach the ignition switch or kill switch safely, shut off the engine to cut power. Move yourself and others away from the mower and any fuel spills. Do not attempt to pick up the burning unit or drag it through dry grass. If there are children, pets, or combustible materials nearby, relocate them to a safe distance and ventilate the area to reduce smoke exposure.
Containing the fire and stopping fuel flow
If it is safe, close the fuel valve or any accessible shut-off, and switch off the mower’s ignition. Do not open the hood or touch hot surfaces unless you have proper protective equipment. Keep a clear escape path and avoid crowding the unit. Containing the source of the flame helps the extinguisher do its job and prevents the fire from reaching a larger fuel source.
Extinguishing safely with the right tools
Use an appropriate fire extinguisher (ABC or BC class) aimed at the base of the flames. If the flame is small and you have a clear escape route, approach from the side and sweep from side to side until the fire is out. Never spray water on a gasoline or oil-based fire, as this can spread the fuel. If a fire blanket or sand is available, you can use it to smother the flames while keeping a safe distance.
Post-fire cooling and checks
Once the flames are extinguished, allow the mower to cool completely before touching any metal surfaces. Inspect for fuel leaks, damaged hoses, or scorched wiring. Do not attempt to restart the engine until a professional has inspected the unit. If there was any fuel spill, absorb with non-flammable material and dispose of it according to local regulations.
Prevention: maintenance that reduces risk
Regular maintenance reduces fire risk. Clean the engine area to remove grass and oil buildup, replace old fuel, check the wiring for wear, and inspect the battery and terminals for corrosion. Store fuel away from the mower and in approved containers. A proactive maintenance routine catches issues before they become dangerous, protecting your mower and your yard.
Storage and readiness: safety gear within reach
Store an approved fire extinguisher near your mower storage area and ensure it is up to date with a current inspection tag. Keep a metal lid or fire blanket on hand to smother smoldering areas, and have a small spill kit for fuel leaks. Training family members on the basics of fire safety—like how to operate the extinguisher—can save precious seconds during a real incident.
What to tell others after an incident
Document the incident noting what caused it, what steps were taken, and what maintenance was performed afterward. Sharing the incident details with a service technician helps pinpoint whether recurring issues exist. This record also serves as a reminder to review safety procedures and storage practices.
Authority sources
- OSHA fire safety guidelines: https://www.osha.gov
- USFA (FEMA) home fire safety tips: https://www.usfa.fema.gov
- General safety recommendations: https://www.cdc.gov/niosh/npptl/topics/fire/index.html
Tools & Materials
- ABC or BC fire extinguisher (5-10 lb)(Ensure it is rated for Class A/B/C fires and within service interval.)
- Metal lid or heavy metal sheet(Use to smother flames by depriving the fire of oxygen if safe.)
- Baking soda(Small fires can be smothered with baking soda if extinguisher is unavailable.)
- Locking pliers or wrench(To disconnect battery terminals if accessible and safe.)
- Heavy-duty gloves(Protect hands from hot surfaces and sharp components.)
- Spill containment materials (sand/absorbent)(Contain and absorb fuel spills if extinguisher isn’t available.)
- Phone or emergency device(Call emergency services if the fire grows beyond control.)
Steps
Estimated time: 15-30 minutes
- 1
Power off and secure the area
If safe to reach, switch off the mower and remove the key. Move yourself and others away from the flames and any fuel spills. Do not attempt to pick up the burning mower while it is hot or smoking.
Tip: Keep escape paths clear and watch for flare-ups near dry grass. - 2
Isolate the mower from fuel sources
Close the fuel valve if accessible and safe. This reduces the amount of fuel feeding the fire. If there is no accessible valve, prioritize cooling the nearby fuel containers and spills.
Tip: Do not open the gas cap if the area is hot and flames persist. - 3
Disable the electrical system (if safe)
If you can do so without risking burns, disconnect the battery or neutralize the electrical supply to prevent further ignition sources.
Tip: Only attempt if you have a clear path to the battery and it is not damaged. - 4
Extinguish the flames (if small and safe)
Aim a class ABC or BC extinguisher at the base of the fire and sweep; start from a safe distance. Do not use water on gasoline or oil fires.
Tip: If the flame grows or you feel heat through protective gear, retreat and call for help. - 5
Cool and inspect after the flames die
Let the mower cool completely before touching or moving it. Check for leaks, melted plastics, and damaged wiring.
Tip: Document any signs of damage for a professional inspection. - 6
Call for professional service
Even if the fire is out, a professional inspection is essential to verify there is no fuel leak or compromised wiring.
Tip: Do not restart the engine until a qualified technician clears it. - 7
Clean up and store safety equipment
Dispose of contaminated materials safely and rinse hands after handling. Store extinguisher and safety gear in a dry, accessible place.
Tip: Replace or recharge extinguishers after use or if pressure is low. - 8
Review and update safety practices
After the incident, review storage and maintenance schedules to prevent recurrence. Share lessons with household members.
Tip: Add a fire-safety check to your mowing routine.
Got Questions?
What should I do first if my lawn mower starts to catch fire?
If safe, switch off the mower, move away from flammables, and call emergency services if the fire is growing. Do not try to tow or drag the unit if it is hot or spreading. Use an extinguisher if you can do so safely.
First, turn off the mower and move everyone away. If it’s safe, grab an extinguisher and put out the flames, then call for help if it grows.
Is it safe to use water on a lawn mower fire?
No. Water can spread gasoline and oil-based fires and make the blaze bigger. Use a Class ABC or BC extinguisher, or smother with a blanket or sand if needed.
No—water makes it worse for fuel fires; use an extinguisher or a fire blanket instead.
What are common causes of lawn mower fires?
Overheating engines, fuel leaks, oil or hydraulic failures, and electrical faults are common. Regular maintenance and cleaning reduce these risks.
Overheating, fuel leaks, and electrical faults are the common culprits; staying on top of maintenance helps prevent fires.
Can I reuse the mower after a fire?
Only after a professional inspection confirms there are no leaks, damage, or compromised wiring. Do not restart until cleared by a technician.
Only if a professional checks it and clears it; don’t reuse until then.
Should I keep a fire extinguisher near my mower storage area?
Yes. Keep a suitable extinguisher handy, with current maintenance, and ensure household members know how to use it.
Yes—keep one nearby and make sure everyone knows how to use it.
When should I call emergency services?
Call if the fire is spreading beyond the mower, if you cannot control it with an extinguisher, or if anyone is in danger.
Call emergency services if the fire cannot be controlled quickly or if people are at risk.
Watch Video
The Essentials
- Act fast but stay safe; power down and distance yourself from the fire
- Use the right extinguisher and never use water on fuel fires
- Smother small flames only if you can do so safely
- Let the mower cool completely and seek professional inspection before reuse
- Prevent fires through regular maintenance and proper storage
