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Most Recent Questions
Recent Question:
WILL HAVING GENERAC INCREASE ELECTRIC MONTHLY BILL ?
Recent Question:
How far away from my furnace exhaust do I need to place my standby generator?
Recent 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?
Recent Question:
What size gas line do I need to run
Questions with Most Recent Answers
Question:
How far away from my furnace exhaust do I need to place my standby generator?
Question:
WILL HAVING GENERAC INCREASE ELECTRIC MONTHLY BILL ?
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?
Question:
What size gas line do I need to run

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

Customer questions and answers:
455 Questions
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507 Answers
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Customer questions and answers for Generac Power Systems 20kW-6730

Question

Is it ok to let snow pile up around my permanent generax.

State: MA - Massachusetts
Age: Over 65
This product will backup: Furnace
asked 10 months ago
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Andy
Newburyport
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During times where snowfall is expected, we recommend ensuring 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 to ensure proper air flow if the unit were needed in an outage.
answered 10 months ago
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GeneracPowerSystems02
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Question

I am planning a standby generator system for my home.

I have 400 AMP utility service split into (2) 200 amp (30) slot panels.
Each panel has a 60 amp breaker for the 2 electric heat pump furnaces in my home. I heat the house off one of the heat pump systems when we do not have guests to fill the 6 bedrooms. My question is do I need 2 disconnects or can I simply connect to one of the panels for standby power and is 20KW enough.
State: MO - Missouri
Age: 55-64
This product will backup: Furnace
asked 10 months ago
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MarkinMo
Osage Beach
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answer 1
The required configuration for your generator and associated transfer switches will depend upon the loads you intend to cover, as well as the setup of your home and purchased unit. To determine the generator and transfer switch most applicable to your backup power needs, we would recommend working with an 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/Service/Deal....
answered 10 months ago
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GeneracPowerSystems02
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Question

installation and delivery questions

my dealer/installer is putting the 20K generator on abed of rock that is not "pea" size. Is this acceptable? My second question is shoul I be charged for shipping to the dealers/installers office or is this included in the price of the generator?
State: IN - Indiana
Age: Over 65
This product will backup: Entire Home
asked 11 months ago
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scsc949
New Albany
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As specified in the unit’s installation guide, Generac’s air-cooled automatic standby generators should be installed on a level bed of pea gravel or cement base. We do not recommend installing the unit on any pavers or brick-constructed bases. Any damage incurred to the unit due to wrongful or improper installation will void the product’s warranty. Furthermore, we would recommend contacting the dealer for inquiries regarding costs incurred, as the unit would have been purchased through that particular dealer.
answered 10 months ago
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GeneracPowerSystems02
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Question

Procedure to turn fuel conversion knob

Just received my Guardian 20kw Model 6250. The installation manual says that it might be necessary to use pliers to break free the fuel conversion valve in order to turn it. Inside the unit there is a tag attached to the fuel conversion knob that gives directions that say to push in and turn the knob. Please explain exactly how the knob should be handled - I don't want to damage/break anything.
State: GA - Georgia
Age: Over 65
This product will backup: Entire Home
asked 11 months ago
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Dennis
Warrenton
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When adjusting the fuel conversion knob, one must push in and turn the knob until it rests on the proper fuel selected for use. Turning the knob may require utilizing a pliers for gripping purposes. If you are experiencing issues with turning this knob, please contact Generac directly at 888-GENERAC (436-3722) for assistance.
answered 10 months ago
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GeneracPowerSystems02
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Question

What is differance between mod. 5875 and mod. 6244

asked 11 months ago
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gauge640
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answer 1
While Generac’s 20kW Guardian Series automatic standby generators, model numbers 5875 and 6244, are two very similar units, they do have a few slight differences. Each of these generators feature an external main circuit breaker, natural gas or liquid propane operation capabilities, and a low oil pressure shutdown. These units also come pre-wired with a 200 Amp, Service Entrance Rated transfer switch, however, the transfer switch utilized with model number 6244 comes with an aluminum enclosure. Another key difference between these two units pertains to the control panels featured in each. Model number 5875 features the Nexus Controller, whereas model number 6244 features our updated Evolution Controller. As for the fuel pressure required for the optimal performance of the generator, model number 6244 requires 205,000 btu/hour and 3.5-7” water column when operating the unit with natural gas, and 189,000 btu/hour and 10-12” water column for liquid propane. Conversely, model number 5875 requires 206,000 btu/hour and 5-7” water column for natural gas, and 173,880 btu/hour and 10-12” water column for liquid propane use. Further information can be found here: http://www.generac.com/Service/Manu..., by using each model number to search for the unit’s owner’s manual and additional documentation.
answered 11 months ago
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GeneracPowerSystems02
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Question

does the 20kw 6244 come with a battery?

State: NY - New York
Age: 55-64
This product will backup: Entire Home
asked 11 months ago
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pt
rye brook
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answer 1
As the manufacturer, Generac Power Systems does not supply a battery with its automatic home standby generators. However,
the required battery is a Group 26R, 12V, 525 CCA minimum. When properly installed, the battery charger that is integrated into the control panel will maintain the charge on your battery. Furthermore, replacement batteries can be purchased through your local Generac certified service dealer. To locate a certified dealer, search your postal code here: http://www.generac.com/Service/Deal....
answered 11 months ago
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GeneracPowerSystems02
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Question

How to connect Generac Guardian 20kw to internet

I'm familiar with mobile link and the nexus remote controller. I'm not interested in a cellular service or the standalone wireless controller.

Is there a simpler approach to connect the unit through my wireless router to access the menu on the unit from my home computer?
State: NJ - New Jersey
Age: 55-64
This product will backup: Entire Home
asked 1 year ago
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Heatwave
Readington
on 20kW-6730
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answer 1
Other than the devices that you have alluded to, Generac’s generators do not have internet communication or monitoring capabilities. Our units utilize either a remote or cellular monitor. Currently, there are no provisions enabling customers to connect with the internet via our automatic standby generators.
answered 1 year ago
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GeneracPowerSystems02
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Question

In a large home 4000 -5000 Sq foot that has( 2) 200 amp panels...

And is fed from the utility company with a 320 amp service can a standby generator feed two 200 amp transfer switches ? Also would it be feasible for a 20 kw generator to fit the application? My house has a well
A 3 ton ,a 2 ton and a 1.5 ton hvac units , it also has an electric range and two refrigerators.
State: DE - Delaware
Age: 35-44
This product will backup: Entire Home
asked 1 year ago
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Dan D
magnolia delaware
on 20kW-6730
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answer 1
We recommend working with your local certified dealer or local certified electrician, as they will be able to determine the correct size generator and transfer switch configuration to meet your needs.
answered 1 year 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 1 year 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 1 year 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 1 year ago
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Concerned
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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 1 year ago
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GeneracPowerSystems02
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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 1 year ago
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POOLGUY
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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 1 year 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 1 year, 1 month ago
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connie
houston
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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 1 year, 1 month ago
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Pinky
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Question

What does code 1900 indicate

Generac model 6258 running on LP
asked 1 year, 1 month ago
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Little big man
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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 1 year, 1 month 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 1 year, 1 month 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 1 year, 1 month 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 1 year, 1 month ago
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Bob B.
Bridgeport
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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 1 year, 1 month 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 1 year, 1 month ago
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Doug
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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 1 year, 1 month 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 1 year, 1 month ago
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Tim
Penobscot
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answer 1
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 1 year, 1 month 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 1 year, 1 month ago
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Lyra
Monroe
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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 1 year, 1 month 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 1 year, 1 month ago
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Don
Guilford
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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 1 year, 1 month ago
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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 1 year, 2 months ago
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Mike
Illinois
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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 1 year, 2 months ago
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