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Most Recent Questions
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what is the recommended maintenance schedule on a guardian generator
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you think 22kw will run my whole house plus Electric Furance ? ?
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Bypassing phase monitor relay
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20KVA Generator can I use a Lithium Iron battery?
Questions with Most Recent Answers
Question:
what is the recommended maintenance schedule on a guardian generator
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you think 22kw will run my whole house plus Electric Furance ? ?
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What is the minimum distance required between the 22k generator and my home?
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Bypassing phase monitor relay

Customer questions and answers for
Generac Power Systems 20kW

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

Question

failure to stop after power restored

What would cause my 22 watt whole house generac generator to fail to stop after power is restored.
State: CA - California
Age: Over 65
asked 4 months, 3 weeks ago
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by
boatingguyjohn
colton
on 20kW
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If a generator fails to shutdown and return your connected loads to utility if/when power is restored, there may be an issue with the control wiring configured between the generator and automatic transfer switch, or there may a fuse may have blown within your transfer switch. To ensure that your unit's installation has been properly setup, we would recommend contacting either your unit's installer or an independent authorized service provider in your local area. 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 4 months, 3 weeks ago
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GeneracPowerSystems02
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Question

What is the difference between a 20kw Centurion & a 20kw Guardian?

State: ME - Maine
Age: 35-44
 
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asked 4 months, 3 weeks ago
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bluewatersailor
Mount Desert Island, Maine
on 20kW
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answer 1
While both of these series withhold similar features and specifications, the main difference between the two is that the Centurion Series generators are manufactured exclusively for select retailers.
answered 4 months, 3 weeks ago
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GeneracPowerSystems02
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Question

why does a 20KW generator only have 90 amp breakers

The generator comes with a 200 amp switch box but is only good for 100 amp.
State: WV - West Virginia
Age: Over 65
asked 4 months, 3 weeks ago
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by
rpduck
Parkersburg
on 20kW
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answer 1
Please know that Generac's 20kw automatic home backup generator, model number 6730, does not come with an automatic transfer switch included. If you questions about an alternative model or a particular transfer switch, please contact us directly with the model number of the product(s) in question. We can be reached 24/7 at 888-GENERAC (436-3722).
answered 4 months, 3 weeks ago
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GeneracPowerSystems02
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Question

Generac air filters cropss reference

Is there a cross reference for Generac air flter for 20 KW generator?
State: KS - Kansas
Age: Over 65
asked 4 months, 4 weeks ago
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by
GEW
ElDorado
on 20kW
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To ensure that you are able to identify the air filter that is currently recommended and available for your personal unit, we would recommend utilizing your generator's model number to search for the unit's parts listing(s) via the following link: http://www.ordertree.com/generac/ . If you have any other product-related inquiries, please do not hesitate to contact us directly at 888-GENERAC (436-3722); we have representatives available 24/7.
answered 4 months, 4 weeks ago
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GeneracPowerSystems02
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Question

runs battery down

I have a generac 20 kw ,it does not do the weekly test and the battery is being run down after only a day or two. I can charge the battery and it will crank and run just fine but it won't crank when the power is out because the battery has been drained too low. If I recharge the battery it works and runs everything like it should. What do i need to get it back to way it should be . I talked to my electrian and he said it is too hard to get parts for he willnot work on it. . please respond. David nelson
State: AL - Alabama
Age: Over 65
asked 5 months ago
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by
david
mobile
on 20kW
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answer 1
As the battery is charged via the T1 control wire when the unit is appropriately wired to an existing utility source via an automatic transfer switch, we would recommend ensuring that this wiring is properly configured. Also, if your unit is not exercising, we would recommend ensuring that the exercise time is appropriately set in your unit's control panel; steps to perform this task are provided in the Menu Map provided in your unit's owner's manual. Please note that all wiring-related tasks should be performed by an independent authorized dealer or service provider in your local area. 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 do not have access to your product's owner's manual and would like to locate a duplicate copy online, please use your product's model or serial number to search for your product's documentation via the following link: http://www.generac.com/service-supp...
answered 5 months ago
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GeneracPowerSystems02
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Question

How do I clear a second priority Yellow LED code?

asked 5 months ago
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by
markleo
on 20kW
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answer 1
Once all necessary steps and services are appropriately provided to the unit in accordance with the error code that is being displayed, the corresponding alarm can be cleared by putting the unit into the OFF position and pressing the ENTER button. If you have any other questions, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
answered 5 months ago
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GeneracPowerSystems02
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Question

20KW - underspeed alarm ONLY when power is out, works perfect when power is active

My 20KW is hooked to gas and works perfectly when the utility power is active. It starts and will run for hours off the natural gas. However the moment we lose utility power the generator will start up in approx. 10 seconds as it should. However it then runs for 30 seconds to a 1 minute before shutting off with an underspeed alarm. Please let me know why it works with power and then fails without so we can get this fixed. Is it wired wrong?
State: OR - Oregon
Age: 45-54
asked 5 months, 1 week ago
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by
CJ
Salem
on 20kW
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answer 1
An automatic standby generator should not be operating if/when utility power is available; the generator is manufactured to automatically operate and provide backup power when a power outage occurs. If your unit is operating when utility power is present, we would recommend having your unit's connections checked immediately by a local independent authorized dealer. To locate an independent authorized dealer closest to you, please use your postal code for searching purposes here: http://www.generac.com/dealer-locat... .
Also, an Underspeed alarm will show when the engine is not able to increase speed and run at 3600 RPM. There can be many causes for this, including, but not limited to, low fuel pressure, bad spark, the unit becoming overloaded, or the unit’s battery being low or dead. We would first recommend verifying the voltage of the battery and replacing it, if need-be. If the unit’s battery is fine, we would then recommend contacting your gas line installer to ensure that the fuel pressure is proper. If the fuel supplied to the unit is adequate, then we would recommend contacting a local independent authorized service provider for any diagnostic and/or servicing work that may be required. We recommend contacting your gas line installer first, as ensuring correct fuel pressure is the first step in the troubleshooting process, and if applicable, would fall under improper installation under the warranty statement.
If you have any other product-related comments, questions, or concerns, please contact us directly at 888-GENERAC (436-3722). We hope you find this information to be helpful.
answered 5 months ago
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GeneracPowerSystems02
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Question

Which Tune up kit do you use for a 20 watt model 58870?

My customer has a gererac 20 kw model 0058870, will kit# gen5665 work?

Thanks Mark
asked 5 months, 2 weeks ago
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by
Mark
on 20kW
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answer 1
To ensure that you are utilizing the appropriate maintenance kit for your specified unit, we would recommend using the product's model number to search for the proper kit via the following link: http://www.ordertree.com/generac/ai...
answered 5 months, 2 weeks ago
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GeneracPowerSystems02
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Question

Not getting enough pressure to start

I have a 10k generac standby generator....It runs on propane...I been having problems with it not turning over.,..I had a tech come out and he said he couldn't see anything wrong with. It so he did a maintance tuneup and it. Started right up...The only thing he said is it's probably not getting enough pressure to start because the line is 1/2" and he said it should be 3/4" ....What I'm not understanding is this only stated doing this over the last 8 months...I had it almost 4 yrs. and it always started on the weekly run...what else could've the problem.....No codes coming up....
State: RI - Rhode Island
Age: 55-64
asked 5 months, 2 weeks ago
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by
Kay
N.smithfield
on 20kW
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answer 1
A lack of fuel pressure would, in fact, limit the operational capabilities of the unit; a gradual drop in pressure from your existing fuel source could also cause similar issues. Considering this, we would recommend checking the level of fuel available in your connected LP tank. Also, if a tank any smaller than 250 gallons is utilized, or if the fuel is continually utilized without being re-filled, fuel pressure would gradually drop; a tank that is low would need to be re-filled or replaced. To ensure that your unit is appropriately setup for your desired fuel source, we would recommend contacting your local propane provider and/or a licensed plumber.
answered 5 months, 2 weeks ago
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GeneracPowerSystems02
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Question

have GENERAC agent in the Netherlands?

Age: 55-64
asked 5 months, 2 weeks ago
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by
SAS
The netherlands
on 20kW
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answer 1
To locate an independent authorized dealer in your local area, please use your postal code for searching purposes here: http://www.generac.com/dealer-locat...
answered 5 months, 2 weeks ago
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by
GeneracPowerSystems02
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Question

How much natual gas does this unit use per hour/ cost per hour to run

asked 5 months, 3 weeks ago
Customer avatar
by
Isabella
on 20kW
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answer 1
Per the unit's spec sheet, Generac's 20kw automatic standby generator, model number 6730, will consume 308 cubic feet of natural gas per hour when operating on a natural gas fuel source at full load. To obtain further information regarding the unit's specifications, please feel free to visit the following link: http://gens.lccdn.com/generaccorpor... . Moreover, if you are interested in learning more about the cost of fuel consumption in your local area, we would recommend contacting your local fuel line provider or gas company.
answered 5 months, 3 weeks ago
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by
GeneracPowerSystems02
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Question

What about an earthquake and they shut off the natual gas

Then what?

Do you offer gas or other?
State: CA - California
asked 5 months, 3 weeks ago
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by
Isabella
on 20kW
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answer 1
Generac's 20kw automatic standby generator, model number 6730, is capable of operating on a fuel source of either natural gas or liquid propane vapor. If you are interested in a gasoline-powered unit, however, we would recommend considering our portable generator models. To learn more about our portable product line, please visit the following link: http://www.generac.com/all-products...
answered 5 months, 3 weeks ago
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GeneracPowerSystems02
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Question

In folrida how often does a standby generator require service

State: FL - Florida
Age: Over 65
asked 5 months, 3 weeks ago
Customer avatar
by
rick
on 20kW
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answer 1
No matter where the generator is located, the Maintenance Schedule, which is detailed in the unit's owner's manual, should be followed accordingly. Please know that different maintenance tasks will need to be performed at different times. To locate the unit's documentation online and learn more about the maintenance required by this particular unit, please use the product's model number for searching purposes via the following link: http://www.generac.com/service-supp...
answered 5 months, 3 weeks ago
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GeneracPowerSystems02
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Question

Any plans to market a Ecogen 20kw or larger unit?

Seems like the largest Ecogen you market is 15KW. Any plans for a larger one say 20KW or 25KW?
 
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asked 6 months ago
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by
Lou
on 20kW
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answer 1
At this time, we do not have any information to provide regarding the future production of alternatively sized products that are not currently being manufactured. If/when a product is available, that information will be released to the public on our company website. To keep tabs on the latest news and innovations from Generac, we would recommend periodically visiting the following link: http://www.generac.com/?cid=frm-100...
answered 5 months, 4 weeks ago
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by
GeneracPowerSystems02
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Question

Can Generac backup be added when there is a solar panel system

Would Generac backup generator work in a system that has a solar panel system currently in place. Power production would switch to the Generac in the event of a power line failure. In that event, would the solar system be automatically switched off or would it still be allowed to generate power for the house along with the Generac and would the process be automatic.
 
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asked 6 months ago
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by
Lou
on 20kW
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answer 1
Please know that Generac’s 20kw Guardian Series automatic standby generator, model number 6730, is not manufactured for off-grid use. Please note that we would recommend considering our EcoGen Series units for use in a setup where a solar panel system is being utilized for primary power. If you have utility power available, however, please know that any load connected to the unit that does not exceed the unit's output ratings will be powered if/when a power loss is experienced. To ensure that you are utilizing the appropriate products and configuration for your desired installation and associated loads, we would recommend working with a local independent authorized dealer. To schedule a free in-home consultation, please visit the following link: https://www.generac.com/for-homeown... . If you have any other product-related 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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GeneracPowerSystems02
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Question

what is the exercise time and frequency for a 20kw unit

State: NJ - New Jersey
Age: Over 65
asked 6 months ago
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by
chuck
jackson
on 20kW
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answer 1
Per the unit's owner's manual, Generac's 20kw automatic standby generators will exercise for approximately 5 or 12 minutes (depending on the model) at the time of day specified during setup. The exercise timer can be set for weekly, biweekly or monthly operation. If you would like to learn more about a particular unit through the product's documentation, please know that this information can be obtained online by using the unit'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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by
GeneracPowerSystems02
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Question

Is the guardian series internally or externally regulated

State: NM - New Mexico
Age: Over 65
asked 6 months ago
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by
Hondo
Tinnie
on 20kW
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answer 1
Generac's Guardian Series automatic standby generators are regulated externally via the unit's controller.
answered 6 months ago
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GeneracPowerSystems02
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Question

Can I use a Grill Propane tank for my 20KW generator

State: DE - Delaware
Age: 45-54
asked 6 months ago
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by
Kaz
Middletown
on 20kW
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answer 1
Please note that the size of propane tank utilized in a configuration featuring Generac’s Guardian Series automatic standby generators should be no smaller than 250 gallons. To ensure that your fuel line is provided appropriately for your back-up power requirements, we would recommend working with your local fuel line provider.
answered 6 months ago
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GeneracPowerSystems02
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Question

is it possible to set a whole house generator so it will cycle on and off, say four hours on four off ?

I plan on being gone from my house for several weeks at a time . I don't want the generator to use all my propane, especially in the winter, while I am gone
State: WV - West Virginia
Age: Over 65
asked 6 months ago
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by
geezer
central wv
on 20kW
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answer 1
Generac's automatic standby generators are manufactured to automatically operate in the event of a utility outage. While these units are capable of operating manually, doing so will require going out to the unit's control panel to manually turn the unit on and off. There is no way to set the generator to run for a specific period of time when you are away from the unit. If you have any additional 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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GeneracPowerSystems02
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Question

What is the Natural gas But input for a model 98A 01359s generator

This model was manufactured in 1998.
State: NJ - New Jersey
Age: 45-54
asked 6 months ago
Customer avatar
by
Bill
on 20kW
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answer 1
Unfortunately, the information that you have provided does not correlate with our systems. So that we can provide you with information specific to your unit, please contact us directly at 888-GENERAC (436-3722) with the serial number of your personal automatic standby generator.
answered 6 months ago
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