Frequently Asked Questions

Is a standby for you?

Considering an investment in a standby generator? The Propane Education & Research Council offers this checklist to help consumers decide if a standby would be a worthwhile investment for them:
Are you elderly or otherwise susceptible to extreme temperatures?
Do you rely on a home medical device powered by electricity?
Do you require refrigeration for medicines or other health-related needs?
Do you have an electronic security system?
Do you rely on a sump pump to keep your basement belongings dry?
Do you require heating and/or refrigeration for infant needs such as bottles, formula preparation, etc.?
Do you live in an area prone to serious power outages (for example, you have had two or more outages lasting at least 12 hours in the past year)?
Do you rely on an electrically operated well or water purifier for fresh water?
Do you operate a business out of your home that requires electricity for office equipment such as computers, phones, copiers and fax machines?

Where is the engine made?

The engines used on the GUARDIAN Ultra Source® portables are manufactured at our Generac Power Systems, Inc. factory in Whitewater, WI. Generac engines are industrial grade engines designed to provide the ultra-quiet, longer-lasting performance required of portable generators. Generac OHVI® industrial engines run 3-5 times longer than SV/OHV lawnmower style engines. They also run 30-50 degrees cooler, are 5% more fuel-efficient and reduce oil consumption by 25%.

What is the difference between rated watts and maximum watts?

Rated watts describe the amount of power the portable generator can produce continuously. Maximum wattage is the power that the generator can produce for short periods of time. Motor starting is a good example of maximum wattage requirements.

What type of oil is recommended?

SAE 30W high detergent.

How often should I change the oil?

Oil should be changed after every 50-hours of run time.

What type of gasoline is recommended?

Use clean, fresh unleaded gasoline with a minimum 85 octane rating.

How often should I perform routine maintenance?

The maintenance schedule for your GUARDIAN Ultra Source portable generator is in the owner’s manuaL.

Does the portable generator need to be grounded?

Yes. For safety, the generator must be properly grounded. If the generator is not grounded, you run the risk of electrocution. We strongly recommend that you check and adhere to all applicable federal, state and local regulations relating to grounding.

Should the fuel be drained when storing the portable generator for more than 30 days?

Yes. It is highly recommended that you drain the fuel from the tank and run the carburetor dry. OHVI engines meet EPA and CARB regulations and are less tolerant of stale fueL.

Can I vent the exhaust out of an enclosed area?

No. Portable generators are designed to run outside where there is plenty of ventilation. Never run the generator in the home or an enclosed area.

Can the generator be used during inclement weather?

Generators can be used during a wide variety of weather temperatures, but should be protected from the elements when not in use to prevent shorting and rusting. NEVER run a generator indoors.

Where can I purchase parts?

Parts can be purchased online or by calling 888.464.9560. Part numbers are located in the owner's manuaL.

I can't locate my original owner's manuaL. How can I get another copy?

For our customers’ convenience, we now offer technical information, diagnostic repair, installation and owner's manuals online. Please refer to the Owner's Manual section on this Web site for this information.

Where do I go to have warranty repairs performed?

Call our main office for more information at 888.464.9560.