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Most Recent Questions
Recent Question:
Which Tune up kit do you use for a 20 watt model 58870?
Recent Question:
Are there clearance requirements around generator?
Recent Question:
Not getting enough pressure to start
Recent Question:
have GENERAC agent in the Netherlands?
Recent Question:
Which cold weather kit is compatable with the model 6522
Questions with Most Recent Answers
Question:
Which Tune up kit do you use for a 20 watt model 58870?
Question:
Are there clearance requirements around generator?
Question:
Not getting enough pressure to start
Question:
have GENERAC agent in the Netherlands?
Question:
Which cold weather kit is compatable with the model 6522

Customer questions and answers for
Generac Power Systems 20kW-6730

In many cases, the 20 kW Guardian Series—the most popular Generac home standby generator—can back up your entire home, including multiple air conditioners.
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Customer questions and answers for Generac Power Systems 20kW-6730

Question

Mounting the Guardian series above flood level

What type of structure does Generac recommend for an installation that has to be elevated above the ground. Base and structure. Is there an engineered specification for this? Areas that local authorities have deemed flood zones require the generator to be elevated 7' above ground in some cases on Long Island in NY.
State: NY - New York
Age: 45-54
asked 5 months, 2 weeks ago
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LGA
Suffolk County
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If necessary, the unit may be installed on a structural steel base to elevate the unit, however, please note that treated lumber cannot be used. Furthermore, the base for the unit must be level, and meet all spatial recommendations listed in the unit’s owner’s manual, as well as comply with local and national codes. To ensure that your unit is appropriately configured, we would recommend working with a local independent authorized dealer. To locate an independent authorized dealer closest to you, please use your postal code for searching purposes via the following link: http://www.generac.com/dealer-locat.... If you have any other product-related inquiries, please contact Generac directly at 888-GENERAC (436-3722).
answered 5 months, 1 week ago
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Question

how often to change oil, filter, air filter on 20 kw

I have 20kw home standby, had been serviced once yearly by installer, I am now servicing, need info on parts, etc. and maintenance interval.
State: VA - Virginia
Age: Over 65
asked 5 months, 3 weeks ago
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dacoach
ashland
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Per the unit's owner's manual, Generac's 20kw Centurion Series automatic standby generator, model number 6258, requires having the unit's oil and oil filter changed every 2 years or 200 hours of operation, whichever comes first. As for the air filter, this should be changed at least once every 400 hours. Please note that maintenance-related information can be found in the "Maintenance" section of your unit's owner's manual. To locate your product's documentation online, please use your unit's model or serial number for searching purposes via the following link: http://www.generac.com/service-supp.... Should you require any further assistance, or if you have any additional comments, questions, or concerns, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
answered 5 months, 2 weeks ago
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GeneracPowerSystems02
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Question

20kw Guardian: What does it mean when both green and yellow LEDs are lit?

Model No. 58751
State: CT - Connecticut
Age: Over 65
asked 5 months, 3 weeks ago
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carpenter176
Glastonbury
on 20kW-6730
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When the unit shows a green LED light, this would suggest that the unit is ready to run. However, please note that a yellow LED light alludes to a maintenance reminder that will occur on an annual basis; to determine what particular maintenance reminder is being currently recommended, we would recommend referring to the unit’s control panel. Once this task is performed, the alarm can be cleared by putting the unit into the OFF position and pressing the ENTER button. Should you have any further product-related inquiries after referring to the unit’s control panel and performing the recommended tasks, please contact us directly at 888-GENERAC (436-3722).
answered 5 months, 3 weeks ago
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GeneracPowerSystems02
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Question

after tuneup the green and yellow lights are still on

asked 5 months, 3 weeks ago
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Fred
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When the unit shows a green LED light, this would suggest that the unit is ready to run. However, please note that a yellow LED light alludes to a maintenance reminder that will occur on an annual basis; to determine what particular maintenance reminder is being currently recommended, we would recommend referring to the unit’s control panel. Once this task is performed, the alarm can be cleared by putting the unit into the OFF position and pressing the ENTER button. Should you have any further product-related inquiries after referring to the unit’s control panel and performing the recommended tasks, please contact us directly at 888-GENERAC (436-3722).
answered 5 months, 3 weeks ago
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GeneracPowerSystems02
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Question

How many gallons of propane does a 20kw unit use per hour or day to power an average home -- just need an estimate. Thanks

asked 6 months ago
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JH
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Information related to the fuel consumption of a particular unit can be located on the product's specification sheet. As an example, when operating on a liquid propane fuel source, Generac's 20kw Guardian Series automatic standby generator, model number 6729, features a consumption rate of 2.08 gallons per hour, when operating at half load, and 3.85 gallons per hour, when operating at full load. For specifications pertaining to an alternative model, please use the product's model or serial number for searching purposes via the following link: http://www.generac.com/service-supp....
answered 6 months ago
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GeneracPowerSystems02
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Question

What could be the reason a weekly test cycle fails?

asked 6 months ago
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Gina
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To start, we would recommend first referring to your unit's run log. If the log shows that it has exercised, but it took place at a different time than what it is set for, we would recommend ensuring that both the current date/time and exercise time are properly set on the generator. Additionally, if the unit fails to run it's weekly test at any particular time, a corresponding alarm code should be displayed on the unit's control panel. If the unit is not operating appropriately, you are unable to read this code, or if no code is being displayed entirely, we would recommend contacting an independent authorized service provider in your local area for diagnostic work. To locate an independent authorized service provider closest to you, please use your postal code for searching purposes via the following link: http://www.generac.com/dealer-locat....
answered 6 months ago
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GeneracPowerSystems02
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Question

999cc horsepower rating

State: PA - Pennsylvania
Age: Over 65
asked 6 months ago
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John
King of prussia
on 20kW-6730
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answer 1
Generac does not rate it’s automatic standby generator engines by horsepower. The engines are rated by displacement, and the Centurion 20kw automatic standby generator, model number 6258, features a 999cc engine.
answered 6 months ago
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Question

shutdown alarm

What causes a low voltage shutdown alarm to come on and can I fix it
State: NY - New York
asked 6 months ago
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mark
on 20kW-6730
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The Undervoltage alarm, can arise in the wake of numerous causes. The alarm can be caused by a bad air filter (bad air filters would need to be replaced), or insufficient fuel pressure. To have the fuel pressure appropriately verified, we would recommend contacting your local gas company. If all of these recommended checks can be confirmed, and issues persist, we would then recommend contacting an independent authorized service provider in your local are for diagnostic work. To locate an independent authorized service provider closest to you, please use your postal code for searching purposes via the following link: http://www.generac.com/dealer-locat.... If you have any other comments, questions, or concerns, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
answered 6 months ago
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Question

battery needs service

The yellow and green led lights are on and the lcd display shows battery needs service, but the engine starts just fine. How do I reset the yellow light and the message?
State: CT - Connecticut
Age: 55-64
asked 6 months ago
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ron
Avon
on 20kW-6730
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To reset the Inspect Battery alarm, first inspect the unit’s battery and the associated connections to ensure that they will efficiently power the unit, when needed. Secondly, per the unit’s owner’s manual, put the unit into the OFF position via the unit’s control panel, and press the ENTER button to clear the alarm. To find this information in your unit’s documentation, please use the product’s model or serial number here: http://www.generac.com/service-supp....
answered 6 months ago
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Question

how do you hook up the battery charger when useing a manual transfer switch

State: LA - Louisiana
Age: 35-44
asked 7 months ago
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john
gray,
on 20kW-6730
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As manual transfer switches are not manufactured for use with automatic standby generators, we are unable to provide insight regarding how the two could be configured to work with one another. To ensure that you are utilizing the appropriate products for your back-up power needs, we would recommend working with a local independent authorized dealer in your local area. To locate the independent authorized dealer closest to you, please use your postal code for searching purposes via the following link: http://www.generac.com/dealer-locat....
answered 7 months ago
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GeneracPowerSystems02
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Question

Must the generator vent be kept totally clear during major snowstorms

State: MA - Massachusetts
Age: Over 65
asked 7 months ago
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Bill
lancaster,
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During times where snowfall is expected, you will want to ensure that snow and/or ice is cleared off of, and away from, the enclosure. There should be no snow piles or large accumulations of snow within five feet of the unit; this is to help ensure proper air flow is provided to the unit, if/when the unit is needed during a utility outage.
answered 7 months ago
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GeneracPowerSystems02
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Question

Yellow / green indicator light?

State: MA - Massachusetts
Age: 55-64
asked 7 months ago
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Oscar
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answer 1
When the unit shows a green LED light, this would suggest that the unit is ready to run. However, please note that a yellow LED light alludes to a maintenance reminder that will occur on an annual basis; to determine what particular maintenance reminder is being currently recommended, we would recommend referring to the unit’s control panel. Should you have any further product-related inquiries after referring to the unit’s control panel, please contact us directly at 888-GENERAC (436-3722).
answered 7 months ago
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by
GeneracPowerSystems02
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Question

Have a 20kw. Can't get old oil to flow when cap removed from hose to change oil.

State: TX - Texas
Age: Over 65
asked 8 months ago
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Hogmang
Ore City
on 20kW-6730
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2 answers
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answer 1
Try: Running the engine for 5-10 minutes, first.
(Agitates the particulates that may have settled and raises
the temperature of the oil. Hot oil flows faster than cold)
Loosening the oil fill cap and the dip stick.
(Equalizes the air pressure reducing the vacume that
the draining oil creates)
Changing the air filter or the plugs, while it drains.
(If you stand there and watch it, it will take forever)
Good Luck!
State: MD - Maryland
Age: 55-64
answered 7 months ago
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by
justpassinby
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answer 2
Changing the oil in your 20kw automatic standby generator, we would recommend following the maintenance recommendations cited in the “Changing the Oil and Oil Filter” portion of the Maintenance Section in the unit’s owner’s manual. If issues persist after you’ve followed these steps, we would recommend contacting an independent authorized dealer in your local area for maintenance-related assistance. To locate an independent authorized dealer closest to you, please use your postal code for searching purposes here: http://www.generac.com/dealer-locat.... If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 7 months ago
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GeneracPowerSystems02
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Question

whats the difference with the 6244 model

State: NY - New York
Age: 45-54
asked 8 months ago
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kfo
on 20kW-6730
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answer 1
Generac’s 20kw automatic standby generators, model numbers 6244 and 6730, are fairly similar units. The main difference between these two products, however, is that model number 6244 comes pre-packaged with a 200-amp Smart Switch transfer switch; model number 6730 does not come pre-packaged with a particular transfer switch; the transfer switch would be purchased separately. To review the specifications for both of these products, please use the product’s model number for searching purposes via the following link: http://www.generac.com/dealer-locat....
answered 8 months ago
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GeneracPowerSystems02
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Question

Why will orange natural gas/LP gas knob not turn?

Instructions tell you to press and turn, but unable to press and/or turn.
State: OR - Oregon
asked 8 months ago
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MS
on 20kW-6730
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If the fuel conversion knob proves difficult to turn, we would recommend utilizing pliers to turn the knob as-needed. When using pliers for turning purposes, we would not recommend grabbing the plastic handle of the knob, but rather the metal shaft just below the plastic handle. In the unlikely scenario that additional assistance is required, we would recommend contacting an independent authorized service provider in your local area, or contacting us directly at 888-GENERAC (436-3722). To locate an independent authorized service provider closest to you, please use your postal code for searching purposes via the following link: http://www.generac.com/dealer-locat....
answered 8 months ago
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GeneracPowerSystems02
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Question

what is the btu rating of the 20 kw 005875

asked 8 months ago
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chris
on 20kW-6730
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Available power is about 18KW. You lose the 2KW to machine overhead. That is why the master breakers are 90amp.
answered 3 months ago
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DG99
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Question

HOW DO I ACKNOWLEDGE/CANCEL A "WARNING" MESSAGE...SUCH AS "CHANGE OIL & FILTER"....SO THE WARNING LIGHT STOPS FLASHING?

10 KW MODEL 005883-1
State: IL - Illinois
asked 8 months ago
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WALT
MANHATTAN
on 20kW-6730
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answer 1
When a maintenance-related reminder appears on your generator’s control panel, we would recommend first performing those recommended tasks. Once the task is completed, the ENTER button can be pressed twice, to clear the corresponding alarm.
answered 8 months ago
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GeneracPowerSystems02
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Question

mounting distance from building for 20kw guardian generator

Where in the manual does it state the distance generac suggest the generator be from a structure
State: MA - Massachusetts
Age: 25-34
asked 8 months ago
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derek
on 20kW-6730
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Per the NFPA 37, 8-22kw air-cooled generators feature the following minimum clearance requirements: The unit should be placed 5 feet from any combustible surface or structure; the unit should be placed 5 feet from any wall opening (i.e. door, window, etc.); the front of the unit, along with the two ventilating sides should be placed 3 feet from any surface or structure including trees, bushes, or shrubs. However, please note that based on independent testing done by Southwest Research Institute, the back of the unit can be placed as close as 18” from any surface or structure. This is due to the fact that our enclosures are complaint with Clause (2) of Section 4.1.4 of NFPA 37. Also, please note that these recommended clearance requirements are superseded by local codes. We would recommend working with your local inspector, to ensure that your unit is installed at a proper distance. Also, this information is provided in Section 3 of your unit’s installation guidelines, entitled “Site Selection and Preparation”. To locate your documentation online, please use your product’s model or serial number for searching purposes via the following link: http://www.generac.com/service-supp.... If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 8 months ago
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GeneracPowerSystems02
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Question

What causes high lpg consumption?

I have noticed high consumption of my generator 20kw guardian series
Age: 45-54
asked 9 months ago
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Maekel
Ghana
on 20kW-6730
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When operating at full load, Generac’s 20kw automatic standby generator, model number 6730, will require 308,000 btu/hr and 3.5-7” of water column. Comparatively, when operating on a liquid propane fuel source, the unit will require 350,000 btu/hr and 10-12” water column. To ensure that the appropriate pressure is supplied off of your gas meter or propane tank, or if you think that your unit is consuming too much fuel, we would recommend working with your local gas company or propane provider. If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 9 months ago
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GeneracPowerSystems02
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Question

The yellow light is flashing and panel says check air filter; we did that and it was clean as a whistle. Is there a reset button? where is located?

It's a 20W Guardian Series
State: MI - Michigan
Age: 55-64
asked 9 months ago
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horseridergirl
Lansing
on 20kW-6730
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answer 1
To clear an alarm on Generac’s 20kw Guardian Series automatic standby generator, model number 6730, put the unit into the OFF position and press the ENTER button. Should you require further assistance, please contact us directly at 888-GENERAC (436-3722).
answered 9 months ago
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