Common Mistakes to Avoid When Using a DuroMax Generator
A DuroMax generator is one of the most reliable tools for powering your home, job site, or outdoor adventures — but even the best equipment can be used incorrectly. When setting up your portable generator, avoiding common mistakes will protect your investment and keep you safe.
Here are the most common mistakes generator owners make — and how to avoid them.
1. Running Your Generator Too Close to Doors or Windows
One of the biggest safety hazards is operating a generator too close to your home. Generators produce carbon monoxide (CO) — a deadly, odorless gas that can seep indoors.
Always position your DuroMax generator at least 20 feet away from doors, windows, and vents.
Even a cracked window or partially open garage door can allow CO to enter your living space. To stay safe, keep your generator downwind from your home and use a CO detector inside.
2. Running in an Enclosed Space
Never run your generator in a garage, shed, basement, or other enclosed space — even if the doors are open.
Engines need airflow for cooling and ventilation, and enclosed spaces trap both heat and toxic fumes. This can cause CO poisoning, fire hazards, and damage to your generator.
Instead, always run your generator outdoors on a flat, dry surface with plenty of ventilation.
3. Using the Wrong Extension Cords (or a “Suicide Cord”)
Using the wrong cord — or worse, a “suicide cord” — can cause serious damage or injury.
A suicide cord is a dangerous setup where both ends of an extension cord have male plugs. Some people use these to try to power their home through a wall outlet, which is extremely dangerous and illegal because it can energize circuits in unintended ways and cause fires or electrocution.
Even when using standard cords, make sure they’re heavy-duty, outdoor-rated, and sized properly for your generator’s output.
Look for:
- 12-gauge or thicker wiring
- Three-prong grounded plugs
- Weather-resistant insulation
If you’re powering major appliances or your home circuit, use an interlock kit or transfer switch installed by a professional — never an improvised connection.
4. Not Hiring a Certified Electrician
Connecting your generator directly to your home’s electrical system is not a DIY job. Improper wiring can cause electrocution, electrical fires, or serious damage to your appliances — and it may violate local electrical codes.
A licensed electrician can install a transfer switch or interlock kit to safely route power from your generator into your electrical panel. This ensures your home receives power safely and your generator operates within proper limits.
If you’re not sure how to set up your panel safely, hire a pro. The peace of mind is worth every penny.
5. Improper Electrical Panel Setup (No Interlock Kit or Transfer Switch)
Trying to connect your generator to your home panel without the proper setup is a major safety violation.
Some users attempt to plug their generator directly into a household outlet — a process known as backfeeding — which is extremely dangerous and illegal in most areas.
To power your home safely:
- Use a UL-listed interlock kit or manual transfer switch.
- Have it installed by a certified electrician.
- Always turn off the main breaker before connecting generator power.
Following these steps keeps both your home and the electrical grid safe during outages.
6. Skipping Regular Maintenance
A DuroMax generator is built tough — but it still needs care. Neglecting maintenance can lead to poor performance or early failure.
Follow these maintenance essentials:
- Change the oil after the first 8 hours, then every 50–100 hours depending on use.
- Clean or replace the air filter regularly.
- Inspect spark plugs and replace if worn.
- Keep fuel fresh and stabilized.
A simple maintenance routine ensures your generator is ready to run when you need it most.
7. Not Using a Canopy or Running Cover
Generators must stay dry during operation, but that doesn’t mean you can’t use them in bad weather. Using a generator tent or running cover provides protection from rain and snow while maintaining airflow and safety.
Check out the DuroMax Running Covers — designed specifically for DuroMax generators to offer reliable weather protection without restricting ventilation.
8. Overloading the Generator
Each DuroMax generator has a rated and peak wattage capacity. Plugging in more than your unit can handle may trip breakers, stall the engine, or damage your equipment.
Before starting, add up the total running watts of all appliances and ensure you’re under your generator’s rated limit.
Pro Tip: Start with high-draw appliances (like refrigerators or AC units) and add smaller items gradually.
9. Storing Fuel Improperly
Old or contaminated fuel can clog your carburetor and prevent your generator from starting.
Use fresh, unleaded gasoline and add a fuel stabilizer if storing for more than 30 days. Keep fuel in approved containers, away from direct sunlight and open flames.
When storing your generator for extended periods, run it dry or drain the fuel system completely to prevent gumming or varnish buildup.
Final Thoughts
Your DuroMax generator is built to handle tough jobs and emergencies — but safe operation and proper setup make all the difference.
By avoiding these common mistakes, you’ll protect your investment, ensure compliance with safety standards, and enjoy years of dependable power.
Whether you’re powering your home, job site, or RV — do it safely, do it smart, and do it the DuroMax way.
