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Most Recent Questions
Recent Question:
How does the 22K consume less propane (full load)than the 17K unit? Is this a typo?
Recent Question:
Is the Generac Guardian Series Standby Generator suitable for continuous use as in powering a small restaurant
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my home is ALL electric what size generator should i get
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Will a RTSD200A3 transfer switch work with a new Generac generator?
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What oil comes in the 6551?
Questions with Most Recent Answers
Question:
How does the 22K consume less propane (full load)than the 17K unit? Is this a typo?
Question:
Is the Generac Guardian Series Standby Generator suitable for continuous use as in powering a small restaurant
Question:
my home is ALL electric what size generator should i get
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What should be on the digital screen after activation, "Ready to run and hours of protection"?
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20KW Guardian -- Detect Run and Disable Unnecessary Loads

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

Customer questions and answers:
433 Questions
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481 Answers
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Customer questions and answers for Generac Power Systems 20kW-6730

Question

Lid Lock

I am unable to lock one side of my 20kw generator lid. Other than to prevent theft or tampering, is there any reason the lid needs to be locked? Specifically wondering if keeping it locked helps to seal it against the elements.
State: NY - New York
Age: 45-54
This product will backup: Entire Home
asked 1 year ago
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Anon
Upstate
on 20kW-6730
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Anon,

I do not lock the lid to my Generac, if I need to get in I do not want to be looking for my key.

After several rain storms the unlocked lid maintained a good seal. So no need to lock the lid to get a seal.

Take Care,

Pinky
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 1 year ago
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Pinky
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Question

when is the best time to program the generator to self test in residential home.

State: MA - Massachusetts
Age: Over 65
This product will backup: Entire Home
asked 11 months ago
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BillyD
on 20kW-6730
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While there is no particular recommendation for the time allotted for a unit’s self test, it is often beneficial to schedule the weekly test for a time when someone will be home to ensure that the generator is starting, running, and stopping as it properly should. If you face issues with a consistent schedule and need more flexibility for monitoring purposes, Generac’s advanced wireless sensors enable end user’s to track weekly tests, and to report any error conditions on the unit as well.
answered 11 months ago
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GeneracPowerSystems02
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Question

Does one have to remove the composite base in order to fasten the 2oKW to the GENPAD?

My Generac Guardian 20 KW generator came with a concrete GENPAD. The installers couldn't figure out how to fasten the generator to the GENPAD without unscrewing and removing the composite base from the generator first. Is that the expected procedure? Your manual's installation instructions are very vague about this. Having removed the composite base, we can no longer use the fascia. Should we have done something differently?
State: MA - Massachusetts
This product will backup: Entire Home
asked 11 months ago
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Gas Powered
on 20kW-6730
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One does not need to remove the composite base of the generator to fasten a 20kW unit to the GenPad. By removing the existing bolts from the unit and replacing them with longer bolts (to be provided by installer), the GenPad can be mounted to the generator with the composite pad still intact.
answered 11 months ago
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GeneracPowerSystems02
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Question

are there 5 or 6 control wires from generator to transfer switch

20k air cooled generac
State: NY - New York
Age: 55-64
This product will backup: Entire Home
asked 11 months ago
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john
HOPEWELL JUNCTION
on 20kW-6730
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answer 1
Their are 3 ATS DC control wires .And 2 sensing and 1 load or battery charger supply wires. Makes a total of 6 wires . Always good precaution to run spares , especially if distances of wire pull are long.
State: TX - Texas
Age: 35-44
answered 2 months, 2 weeks ago
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Ferezco
Poteet
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Question

Starting kVA for Guardian 20kW?

I've looked through the owner's manual and data sheets, but I have yet to find a starting kVA rating (20kW model 6244 or 6250). Typically, a residential standby generator will specify a starting kVA or motor starting kVA rating such as 40kVA @ 240V with 35% voltage drop. What is the starting kVA rating of the 20kW model 6244 or 6250? I'm operating on LP not NG?
State: TX - Texas
Age: 35-44
This product will backup: Entire Home
asked 11 months ago
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Ray5796
Houston
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answer 1
The 20kW 120/240V single phase generator is also rated at 20kVa. Single phase generators have the same kW rating as kVa rating. There would only be a difference between kW and kVa if it was a three phase generator. The unit has a continuous load rating of 20,000 watts (kVa). I hope you find this information to be helpful.
answered 11 months ago
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GeneracPowerSystems02
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Question

20kw propane distance from the regulator

State: NJ - New Jersey
Age: Over 65
This product will backup: Well/Water Pump
asked 11 months ago
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rich
29 mountain spring drive
on 20kW-6730
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Propane regulator distance is not as important as long as your distance is sized properly according to Generac specification . Please refer to your installation guide for proper gas specifications.
State: TX - Texas
Age: 35-44
answered 2 months, 2 weeks ago
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Ferezco
Poteet
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Question

Natural gas Pressure

I am purchasing a Guradian Series 20Kw and have 14 inches water column pressure at my meter. Does this need to be regulated down to 7 inches per the specification ?

Your spec reads, "Required fuel pressure to generator fuel inlet at all load ranges - 3.5-7" water column (7-13mm mercury) for natural gas"
State: WI - Wisconsin
Age: 55-64
This product will backup: Entire Home
asked 11 months ago
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Brian
Three Lakes
on 20kW-6730
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answer 1
Brian,

14 inches of pressure sounds to me like the pressure for a commercial property, as compared to a residential property. Be that as it may, yes, you will need to further reduce the gas pressure to the range of 3.5 -7 " water column.

Your plumber, or gas company, should be able to place a second regulator in the line for your generator.

Good luck,

Pinky
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 11 months ago
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Pinky
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Question

how to clear battery warning message

Water has been added. Tested Generator but still show service battery
State: IL - Illinois
Age: 35-44
This product will backup: Entire Home
asked 11 months ago
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Mike
Illinois
on 20kW-6730
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answer 1
To safely maintain the life of the battery, adding distilled water will help to maintain the fluid levels in the battery. Additionally, there are multiple warning messages that pertain to the battery on your unit. Each particular message requires different tasks to be performed, in order to remedy each situation. As the first step in addressing the issue, clearing the message requires setting the AUTO/OFF/MANUAL switch to the OFF position. Then press the ENTER key to unlatch any active fault and clear the corresponding alarm message. If the alarm returns, we would recommend either contacting Generac at 888-GENERAC (436-3722) for specific solution recommendations, or contacting a local service provider. To find an authorized service dealer in your area, please refer to our website at http://www.generac.com/Service/.
answered 11 months ago
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GeneracPowerSystems02
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Question

Generac 5871 connected to RTSD200A3

My electrician completed the install and we are unable to get the battery to charge. All was done according to the installation instructions for each unit but their doesnt appear to be any instructions that show the these two part numbers wired together to verify. Any ideas on where to check for DC output voltage?
State: CT - Connecticut
Age: 45-54
This product will backup: Other
asked 11 months ago
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Don
Guilford
on 20kW-6730
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answer 1
The output from the unit is continually optimized to promote maximum battery life. When connecting the 12VDC battery to the unit, it’s important to first make sure that the generator has been turned off. Then, turn off the utility power supply to the transfer switch. Next, remove the 7.5A fuse from the generator control panel. The red battery cable should be connected from the starter contractor to the indicated positive (+). Secondly, the black battery cable should be connected from the frame ground to the indicated negative (-). Lastly, be sure to install the battery post cover. When properly installed, the battery will be charged by the T1 line, which pulls from utility power when available, whether the unit is in the AUTO or the OFF position; the weekly exercise is not what charges the battery. When utility power is lost and the generator is providing power, the battery charger is powered off of the generator output. The integrated charger is designed to keep a battery at full charge; it will not recharge an already low or dead battery.

After ensuring proper installation, if problems still persist, it would be recommended to contact a local service provider to further diagnose the unit’s issues. To locate a dealer in your local area, please visit http://www.generac.com/Service/Deal....
answered 11 months ago
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GeneracPowerSystems02
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Question

Composite Pad

My community requires that the composite pad extend past the exhaust. They do not allow stone to be put down in the lawn areas. Can the composite pad withstand the heat of the exhaust end of the generator?
State: NJ - New Jersey
Age: Over 65
This product will backup: Entire Home
asked 11 months ago
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Lyra
Monroe
on 20kW-6730
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Generac requires a concrete/cement slab or a level pea gravel base to be installed under the unit’s composite pad. A cement slab can be used to meet whatever requirements your local code might call for. As the composite pad is a part of the unit, it is not a part that Generac is able to alter or modify. The owner’s manual and installation instructions that accompany the unit should be utilized to determine proper placement near structures and vegetation. Please note that any damage or issues incurred due to wrongful installation can potentially void any warranty.
answered 11 months ago
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GeneracPowerSystems02
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Question

Hours of Protection-20kw Guardian

I have a "126 hours of protection" message on my home screen. What does it mean?
State: ME - Maine
Age: Over 65
This product will backup: Entire Home
asked 10 months ago
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Tim
Penobscot
on 20kW-6730
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The hours of protection message on the control panel’s home screen displays the amount of time since the unit was activated that the control panel has been powered.
answered 10 months ago
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GeneracPowerSystems02
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Question

how do i unlock my display? i cant get to where i need to put in my code.

asked 10 months ago
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Doug
on 20kW-6730
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In order to unlock the NOT ACTIVATED code display, one would need to make sure that the AUTO/OFF/MANUAL switch is in the OFF position. Then the 7.5 amp fuse on the control panel should be removed. Next, remove the 5 amp fuse in the T1 fuse holder of the transfer switch. Lastly, put the fuses back in place. If this does not correct the issue that you are currently facing, or if you are uncomfortable performing these tasks, we would suggest contacting a local servicing dealer in your area. To locate an authorized servicing dealer, please visit http://www.generac.com/Service/Deal....
answered 10 months ago
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GeneracPowerSystems02
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Question

Screw torque

What is the torque value for the valve cover screws on a 20KW Guardian engine. I want to check the valve clearance.
State: WV - West Virginia
Age: 55-64
This product will backup: Entire Home
 
Products related to my question
 
 
asked 10 months ago
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Bob B.
Bridgeport
on 20kW-6730
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While we recommend checking valve clearances, we don’t have any further instruction other than what is located in the manual. If you are unsure of how to check valve clearance, we recommend having it done by a Generac certified service technician. If you don’t have a manual, you can locate it at http://www.generac.com/Service/Manu..., by using either the unit’s model or serial number.
answered 10 months ago
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GeneracPowerSystems02
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Question

can we use a 1/2" LP fuel line for a 20kw generac?the LP tank is 17ft from the generator

State: MA - Massachusetts
asked 10 months ago
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attagirl
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The gas line should also be sized by a Generac certified dealer or a certified plumber, based on the volume and pressure required. Proper fuel line sizing will be dependent on many factors, including the distance between the fuel source and generator and local codes. The gas line should also be sized by a Generac certified dealer or a certified plumber, based on the volume and pressure required. For the 20kW standby generator, model number 6244, the fuel volume and pressure requirements for propane are 10-12” water column, and 189,000 btu/hr at half load and 350,000 btu/hr at full load.
answered 10 months ago
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GeneracPowerSystems02
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Question

In the event of a prolonged power outage, what is the consumption rate of propane in gallons per day ?

State: CO - Colorado
Age: 45-54
This product will backup: Entire Home
asked 10 months ago
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Mtn. Dweller
Idaho Springs
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answer 1
To give proper answer , three questions need to be answer. 1 Type of ATS, 2. Size of generator and 3. What is your total amps while this is happening at gen load lugs.
State: TX - Texas
Age: 35-44
answered 2 months, 2 weeks ago
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Ferezco
Poteet
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Question

What does code 1900 indicate

Generac model 6258 running on LP
asked 10 months ago
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Little big man
on 20kW-6730
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When Generac’s 20kW Guardian Series Automatic Home Standby Generator, model 6258, flashes a code, a corresponding written description should be included on the panel’s screen. In reference to your particular alarm, code number 1900 is commonly associated with an active UNDERVOLTAGE alarm. There could be multiple causes of this issue, and we would recommend contacting a local service provider in your area to properly diagnose the problems that you have experienced with your unit. To locate an authorized service provider near you, please visit http://www.generac.com/Service/Deal....
answered 10 months ago
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GeneracPowerSystems02
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Question

the red light is on.... what does that mean?

State: TX - Texas
Age: 55-64
This product will backup: Entire Home
asked 10 months ago
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connie
houston
on 20kW-6730
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answer 1
Connie,

Per the Generac Users Guide Page 20:

Red LED Alarm light is on when the generator is OFF or a fault is detected.

The internal display panel should give you the severest fault (if multiple faults have occurred).

Unless the generator is switched off, the red led tells you that you need to call your Generac Certified Repair person.

Good luck,

Pinky

1. Was the unit ever working properly?

These faults
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 10 months ago
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Pinky
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Question

WHAT IS THE COST OF A 20KW

WHAT IS THE COST OF A 20 KW
State: LA - Louisiana
Age: 35-44
This product will backup: Entire Home
asked 9 months ago
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POOLGUY
on 20kW-6730
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To obtain information regarding the price of a Generac 20kW Guardian Series Home Standby Generator, we would recommend contacting your local authorized sales dealer or retailer, as pricing can differentiate amongst various sales providers.
answered 9 months ago
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GeneracPowerSystems02
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Question

20Kw Guardian Series

What isolates the neutral leg from the service entrance/pole side? Can a bare ground conductor be used from the generator to the transfer switch ground?
asked 9 months ago
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Concerned
on 20kW-6730
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While the unit features a floating neutral, it will be bonded to the ground when properly connected to a Generac automatic transfer switch. Further documentation such as Wiring Diagrams, Owner’s Manuals, and Installation Guides pertaining to specific Generac product model numbers can be located by using the unit’s serial and/or model number here: http://www.generac.com/Service/Manu.... If further questions remain, we would recommend calling Generac at 888-GENERAC (436-3722), for further assistance.
answered 9 months ago
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GeneracPowerSystems02
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Question

how soon do i need a valve adjustment on the 20KW #5875 Guardian generator

State: NJ - New Jersey
Age: 55-64
This product will backup: Entire Home
asked 9 months ago
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tony
3 lexington ct. Whippany NJ
on 20kW-6730
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answer 1
As stated in the Owner’s Manual of the unit, Generac’s 20Kw Guardian Series Automatic Home Standby Generator, model number 5875, should have the valve clearance serviced after every 6 months of operation.
answered 9 months ago
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