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Storm Ready

Is your generator ready for the next storm?

Run these seven checks a few days before a storm. Free, no account needed. Only check what you can see safely from outside the generator and the transfer switch.

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1. Fuel Level

Check the fuel gauge or dipstick. Is the fuel level at least ¾ full?

For propane, aim above 40%. Natural gas — verify no supply interruptions with your utility.

2. Oil Level

Pull the dipstick and check the oil level. Is it between MIN and MAX marks?

Low oil is the #1 cause of generator shutdowns. Change if it looks dark or milky.

3. Coolant Level

Check the coolant overflow reservoir. Is the level in the normal operating range?

Only check when the engine is cold. Low coolant causes overheating and automatic shutdown.

4. Battery

Is the battery free of corrosion? Does the generator start normally on auto-test?

Battery voltage should be 12.4V or above. Replace if more than 3 years old before storm season.

5. Last Run Test

Did the generator complete its last weekly run test without alarms or issues?

Check the controller for last test time and any logged alarms. Generac shows this on the main screen.

6. Transfer Switch

Is the ATS in AUTO mode? Are all breakers in the correct position?

The ATS must be in AUTO for the generator to start automatically during an outage.

7. Active Alarms

Is the controller showing READY or STANDBY with no active fault codes?

Any yellow or red alarm should be resolved before storm season. Common: low battery, service due.

Answer the checks to see where you stand.

Anything marked "Problem" or "Not sure" is worth fixing before the storm.

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02 Your outage plan

Before, during and after the storm.

Before the storm

Run the checks above, fill propane or confirm your gas service, keep the area around the generator clear, and save your installer’s or dealer’s phone number.

When the power goes out

A standby generator with an automatic transfer switch should start on its own shortly after the outage. Avoid starting large loads all at once. If it does not start, get guided help instead of resetting it over and over.

After the storm

Check for debris and water around the unit, and note any alarms for your next service.

Never run a portable generator indoors, in a garage or near windows: carbon monoxide kills. If you smell gas, see water near the panel or smell burning, stay away and call 911 or your utility.