Search Generac

Looking for Answers about Generac Power Systems 20kW?

Business Standby(Q:8 A:8)
Centurion Series(Q:468 A:499)
Commercial Series(Q:34 A:34)
Diesel Generators(Q:71 A:70)
EcoGen(Q:77 A:92)
GP Series(Q:939 A:1100)
Guardian Series(Q:1281 A:1472)
Home Backup(Q:110 A:107)
HomeLink(Q:4 A:4)
LP Series(Q:167 A:173)
Parts & Accessories(Q:45 A:61)
PowerPact Series(Q:23 A:24)
Professional Grade(Q:22 A:24)
Protector Series(Q:8 A:8)
QuietSource Series(Q:162 A:164)
RS Series(Q:40 A:44)
Residential Grade(Q:236 A:279)
Synergy(Q:13 A:15)
Water Pumps(Q:6 A:7)
XD Series(Q:4 A:5)
XG Series(Q:376 A:410)
XP Series(Q:221 A:237)
iQ Series(Q:23 A:24)
iX Series(Q:112 A:188)
Shop now at Generac
or
Choose a Category
Most Recent Questions
Recent Question:
Bypassing phase monitor relay
Recent Question:
What is the minimum distance required between the 22k generator and my home?
Recent Question:
20KVA Generator can I use a Lithium Iron battery?
Recent Question:
Natural Gas Porvider using electric pumps
Recent Question:
EP-42 Emissions Engine Selection
Questions with Most Recent Answers
Question:
What is the minimum distance required between the 22k generator and my home?
Question:
Bypassing phase monitor relay
Question:
20KVA Generator can I use a Lithium Iron battery?
Question:
Natural Gas Porvider using electric pumps

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.
Customer questions and answers:
561 Questions
 | 
619 Answers
Overall rating:
4.828 out of 5
4.8
out of
5

Customer questions and answers for Generac Power Systems 20kW

Question

Is there such thing as an anti theft device?

It seems a quick their could disconnect and make off with the generator in short order. Is there any warning or alarm I can hook to the unit to prevent someone from carrying the unit away
State: OH - Ohio
Age: 45-54
asked 9 months ago
Customer avatar
by
Bchidester
Columbus
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
Please note that Generac's 20kw automatic standby generator, model number 6730, weighs 516 lbs (234.1 kg); it also features several internal connections that cannot be disconnected from outside of the enclosure. These two aspects alone make the unit difficult to steal. Additionally, if the generator is mounted to concrete, there are four mounting holes available for securing the generator as well. Besides these mounting holes, we do not manufacture any parts or accessories that would serve the purpose of an anti-theft device. To inquire about the appropriate model for your backup power needs, and to ensure that your unit is safely secured during installation, we would recommend working with a local independent authorized dealer in your local area. To locate the dealer closest to you, please use your postal code for searching purposes via the following link: http://www.generac.com/dealer-locat.... Please do not hesitate to contact us directly at 888-GENERAC (436-3722) if you have any other product-related comments, questions, or concerns.
answered 9 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

Can (2) 100amp transfer switchs be holed up to one 20kw generator

How do control wires connect to both switchs without back feeding controls?I have 200amp overhead drop to two meter bank and separate 100amp meters feeding house panel and apartment panel.Need to connect the six control wires to both transfer switchs and use one generator.
State: PA - Pennsylvania
Age: 45-54
asked 9 months ago
Customer avatar
by
Andrew
Morrisville
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
While your desired configuration may be approved by your local codes, we are unable to determine via online correspondence whether or not it would be applicable for your personal backup power needs. To ensure that you are utilizing the appropriate products and configuration for your desired loads and existing electrical setup, we would recommend working directly with an independent authorized dealer in your local area. 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 additional inquiries regarding a particular product, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
answered 9 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

what are the physical dimensions of a General 20 kw unit?

asked 9 months ago
Customer avatar
by
Dennis
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
Per the unit's spec sheet, Generac's 20kw automatic standby generator, model number 6730, features a steels enclosure that measures 25.3" wide, 48.3" long, and 28.8 inches tall. To obtain this information online, along with other product-related specifications, please use the product's model number for searching purposes via the following link: http://www.generac.com/service-supp...
answered 9 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

hour meter shows more then it actualy has

State: TX - Texas
asked 9 months ago
Customer avatar
by
joe
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
Joe-

Could you describe what part of the unit's features you are referring to? We only ask because Generac's 20kw automatic standby generator, model number 6730, does not feature an hour meter. If you are referring to the "Hours of Protection" reading provided on the unit's control panel, however, please note that this reading alludes to the amount of time that has surpassed since the unit was originally activated; not the amount of time that the unit has actually operated. Should you require further assistance after reviewing this information, please contact us directly at 888-GENERAC (436-3722).
answered 9 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

What are the three lights for on the outside panel

What are the three lights for (
Green,red and amber on the out side panel
State: TX - Texas
Age: 55-64
asked 9 months ago
Customer avatar
by
Bh
Corsicana
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
The current models of automatic standby generators will have LED indicator lights on the side compartment of the generator. The yellow LED light will indicate that maintenance is needed. A yellow light on its own will not cause the unit to not start or run, but the generator control panel should be checked to determine the maintenance needed. The other lights that could be lit include a green or a red LED. A green LED light will indicate that the unit is in AUTO mode and is ready to run, or is running properly during a utility outage. The red LED will indicate either that the unit is switched to OFF or that there is an alarm detected. If red LED is present, we recommend checking the generator’s control panel, as it will describe the type of maintenance needed, or the alarm present. This information can be found in the owner’s manual as well. You can find a copy of the owner’s manual online by searching the model or serial number of the unit here: http://www.generac.com/service-supp.... If you have any other product-related questions, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
answered 9 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

Battery removal

Do I need to remove more than the front panel to get the battery out of the unit? If so, do I remove the side or the top panel.

Thanks
State: NJ - New Jersey
Age: Over 65
asked 9 months ago
Customer avatar
by
jfdaia
Cape May
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
Once the top of the generator is lifted up, removing the front broadside panel (with displayed logo) on Generac's 20kw automatic standby generator is in fact required to slide the battery out of its compartment. Additional steps would not customarily be required. Should you require assistance regarding how to perform such task(s), please do not hesitate to contact us directly at 888-GENERAC (436-3722).
answered 9 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

20kw generator NG running while we sleep

Can or should I shut the generator off during our sleeping hours. If so is it as simple as opening the unit and setting the console switch inside the generator to off? Then in the AM switch it on?

Thanks
State: NJ - New Jersey
Age: 45-54
asked 9 months ago
Customer avatar
by
Douyon
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
Generac's automatic standby generators need to be in the AUTO position to perform automatically. When the unit is OFF, it is unable to respond in the event of a utility outage. If you would like to ensure that your generator does not come on in the event of an outage that may occur during a specific time range, we would recommend performing the shutdown steps provided in the Operation section of the unit's owner's manual. Please note that this is not recommended for extended periods of time, however, it can be done by following the aforementioned steps. To locate your product's documentation online, please use your postal code for searching purposes via the following link: http://www.generac.com/service-supp...
answered 9 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

Can a 20K Guardian Generator run on 2PSI of Natural Gas?

I'm installing a 20K Generac Guardian Generator with a 45 foot run of gas from the meter to the generator. I am having the gas company turn the gas pressure at the meter up to 2PSI for the run so that I can minimize the run size piping. When the gas line get to the generator do I have to regulate it back down to 7 inches of water column or will the generator run on 2PSI?
State: VA - Virginia
Age: 55-64
asked 9 months ago
Customer avatar
by
Jims59
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
The fuel line provided to your automatic standby generator should be sized for using the unit at full load. Per the unit's spec sheet, Generac's 20kw automatic standby generator, model number 6730, will require 308,000 btu/hr and 3.5-7" of water column. Please note that we do not provide fuel pressure requirements in terms of PSI. To ensure that you are providing the appropriate amount of pressure to your unit, we would recommend working directly with your local gas company and/or a certified plumber. If you have any other product-related comments, questions, or concerns, please contact us directly at 888-GENERAC (436-3722).
answered 9 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

Generac will not start in Automatic position

Hello, I have a propane powered 20KW home generator. Several nights ago storms moved across the area and the utility power went out.
The Generac did not come on. I went outside and the generator was attempting to start. I would "bump" the starter for 1 second, then drop off for 10 seconds, and then bump the starter again. After watching this for several tries, I manually started the generator and moved the transfer switch from utility to generator, which powered the home. Later the utility power returned,(the transfer switch did make the change from generator to utility), I shut the generator off manually. Any ideas, I've had no problems with the gen prior, it's five years old. Thanks...RS
State: TX - Texas
Age: Over 65
asked 9 months ago
Customer avatar
by
Pilot
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
If your unit is able to function when in the MANUAL position, but will not run automatically during an outage, there may be a few likely causes. When this occurs, we would recommend referring to the unit's control panel; this should provide an active alarm and/or error code associated with any issues that the unit may be experiencing. Also, please note that the unit will not run in AUTO if it has not been properly activated. For information on activating a unit, please refer to the activation section in the unit's owner's manual. However, if the unit has been activated and issues persist, we would recommend checking to see if there is an active alarm. If no active alarm exists, the start up delay in your control panel might be greater than expected and would need to be adjusted by an independent authorized service provider. 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.... Moreover, if you are able to identify a particular code and would like to discuss any recommended troubleshooting steps, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
answered 9 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

how can i check if my generator will come on if the power is shut off

State: ON - Ontario
Age: 55-64
asked 10 months ago
Customer avatar
by
murph
pembroke
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
Testing your unit for automatic operation would merely require staging a utility outage; this can be done by turning off the power to your home or restricting the flow of utility power to the generator; this step should also be completed upon initial installation. If the generator does not start-up when this power is negated, or if you do not feel comfortable performing these tasks and require further assistance, we would recommend contacting a local independent authorized dealer in your local area for additional help. 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....
answered 10 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

How much oil per 24 hours of operation is usually consumed?

Our 20KW unit ran 24/7 for about 8 days during Hurricane Sandy. I checked the oil level every day as outlined in the manual and found I needed to add about 6-7 ounces of oil each day. I was using a 5-30 synthetic. I would be interested in learning what other owners experienced during a prolonged outage. Please respond.
State: NJ - New Jersey
Age: 45-54
asked 10 months ago
Customer avatar
by
Bill
Northern NJ
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
Unfortunately we are unable to determine oil consumption rates, as that would depend on maintenance and environmental factors; as with any engine, oil may be consumed in small quantities during operation, requiring additional oil to be added during extended outages. Please note that per the unit's owner's manual, the oil in Generac's 20kw automatic standby generator, model number 6244, should be changed after the first 25 hours of operation and every 200 hours of operation or every 2 years thereafter (whichever comes first). If you have any additional inquiries, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
answered 10 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
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 10 months ago
Customer avatar
by
LGA
Suffolk County
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
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 10 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
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 10 months ago
Customer avatar
by
dacoach
ashland
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
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 10 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
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 11 months ago
Customer avatar
by
carpenter176
Glastonbury
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
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. 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 11 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

after tuneup the green and yellow lights are still on

asked 11 months ago
Customer avatar
by
Fred
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
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. 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 11 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
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 11 months ago
Customer avatar
by
JH
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
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 11 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

What could be the reason a weekly test cycle fails?

asked 11 months ago
Customer avatar
by
Gina
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
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 11 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

999cc horsepower rating

State: PA - Pennsylvania
Age: Over 65
asked 11 months ago
Customer avatar
by
John
King of prussia
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
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 11 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
Question

shutdown alarm

What causes a low voltage shutdown alarm to come on and can I fix it
State: NY - New York
asked 1 year ago
Customer avatar
by
mark
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
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 11 months ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
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 1 year ago
Customer avatar
by
ron
Avon
on 20kW
0points
0out of 0found this question helpful.
Answer this question
1 answer
Answers
answer 1
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 1 year ago
Customer avatar
by
GeneracPowerSystems02
0points
0out of 0found this answer helpful.
<<prev 1 ... 3 4 5 6 7 ... 29 next>>