When winter arrives, your generator becomes more than just a backup plan — it becomes your home’s lifeline. Heavy snow, freezing temperatures, and sudden power outages can happen without warning, and the last thing you want is for your generator to fail right when you need it most.
Even dependable brands need proper preparation to handle the cold. A little maintenance now can prevent a major headache later, especially once the storms roll in.
Start With a Simple Test Run
Don’t wait for a power outage to find out whether your generator still works. Give it a quick test run before winter begins. Let it run for a few minutes and pay attention to how it sounds and feels.
A strong, steady startup is a good sign. Any sputtering, hesitation, or strange noises mean it needs attention — and it’s better to discover that now rather than in the middle of a storm.
Generac generators are built to be reliable, but like any machine, they perform best when checked regularly.
Change the Oil and Inspect the Air Filter
Cold weather thickens oil, making it harder for engines to start. That’s why a winter oil change is one of the most important steps in generator care.
Pair that with a clean air filter, and your generator will run more smoothly and efficiently.
If it’s been a year or more since your last oil change, go ahead and schedule one. It’s a quick task that makes a big difference, especially for Generac units that require clean lubrication to start confidently in freezing temperatures.
Check the Battery Before the Cold Sets In
Cold temperatures drain batteries faster than you might expect. A weak battery is one of the top reasons generators fail in winter.
Test the battery, look for corrosion on the terminals, and replace it if it’s nearing the end of its lifespan. If your battery is around the three-year mark, it’s safer to replace it than risk a winter startup failure.
Protect Your Generator From Snow and Ice
Generators don’t do well when buried under snow or exposed to heavy ice buildup. Make sure yours is placed in a protected, well-ventilated area.
If you use a cover or enclosure, choose one designed for generator use — it should shield the unit without restricting airflow. Generators need proper ventilation to operate safely.
Never run a generator indoors or in an enclosed space. Carbon monoxide builds up quickly and is extremely dangerous.
Inspect the Fuel System
Winter is a tough time for fuel systems. For portable generators, old or stale gas can cause startup issues or clog internal components. Drain old fuel and refill with fresh gasoline if needed.
For propane or natural gas Generac standby systems, check that your fuel supply is steady and the lines are in good condition.
Making sure your generator has a healthy fuel source is one of the easiest ways to prevent winter performance issues.
Make Sure the Transfer Switch Is Working Properly
Your generator may be in perfect condition, but if the transfer switch doesn’t work, your home won’t receive power during an outage.
Transfer switches should always be inspected by a licensed electrician. They’re essential for safe operation, and they ensure your home switches to generator power automatically when the grid goes down.
If you’ve never had yours checked or if your generator feels “slow” to kick in — you can contact Janusz Electric to guide you all the way.
If You’re Ready to Upgrade – Generac Generator Is a Great Option!
If your generator struggles to start, can’t power everything you need, or is showing its age, upgrading before winter arrives is a smart choice. Cold weather puts extra pressure on older units, and the last thing you want is to be stuck without power during a storm. A Generac generator offers dependable, automatic power and is built to perform when the temperatures drop.
If you’re ready to upgrade, Janusz Electric offers professional Generac generator installation to make sure your home has reliable backup power when it matters most.
