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Most Recent Questions
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i need to now the location the baterry charge on 17kw generac generator
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what comes whith it and how much is installation
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Model #6439: how much LPG does it consume per hour?
Questions with Most Recent Answers
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i need to now the location the baterry charge on 17kw generac generator
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what comes whith it and how much is installation
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Model #6439: how much LPG does it consume per hour?

Customer questions and answers for
Generac Power Systems 20kW Whole House Switch

Customer questions and answers:
399 Questions
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Customer questions and answers for Generac Power Systems 20kW Whole House Switch

Question

How can I elevate the generator?

Hurricane Sandy destroyed most of my house. As I am rebuilding, I would like to protect my home from future hurricanes and subsequent flooding.

How can I elevate a natural gas generator so that it is several feet above the ground? We received 7.5 feet of water during Sandy. Even if I can't get the unit safely to an eight foot height, could I build a wooden platform five feet above ground? Could a cement pad be placed on top of the wood? If the generator takes in any salt water, will it work?

Thank you!
Desperate in East Rockaway, New York
State: NY - New York
Age: 55-64
This product will backup: Entire Home
asked 8 months ago
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Desperate In east rockaway
East rockaway
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Desperate,

Yes you can elevate your generator; but you cannot use any old type of building materials to do so. The best bet would be to construct an elevated metal support with a non-flammable base to support the generator. You will probably want to bolt the generator to the base.

The key is that the support structure has to be constructed from non-flammable materials.

If the generator takes on any water; especially salt water (due to its corrosive nature), you should not use the generator until it has been fully inspected by an authorized service person.

The additional issues with putting the generator on an elevated platform is that you are now likely to be at a height level where windows and other openings to the house have to be carefully considered. In brief you need to have the corners of the generator at least 5 feet away from any opening. I would even recommend a much greater distance between the forced air exhaust and any opening to the house; and do not cheap out on placing CO detectors in the rooms near the generator.

How are you powering the generator; natural gas or propane? You need to consider how a future storm will affect your ability to have an uninterrupted flow of fuel.

It may not be worth elevating the generator only to have your propane tanks washed away, or the gas company shutting down the gas mains.

You will have to check with your propane distributor to see if they can elevate the tanks. Also, if you are going with propane you should plan on at least a capacity of 500 gallons if not more.

I hope this helps.

Good luck,

Pinky
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 8 months ago
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Question

What comes with the 20 KW unit, mounting pad, control panels?

State: MN - Minnesota
Age: 55-64
This product will backup: Entire Home
asked 8 months ago
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RED
Irving
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The 20kW automatic standby generator will have the control panel and the composite mounting pad already installed upon purchase. The unit will need to be installed as described in the installation guidelines that are provided with the unit, and connected to an automatic transfer switch. Items needed for a complete installation will be the automatic transfer switch, the wiring for the generator and transfer switch system, the pea gravel base or concrete slab for proper mounting of the generator, the fuel supply line, and the battery.
A cold weather kit and/or a wireless remote monitor may be added to the system at any time if desired, as no additional wires are required from the transfer switch to the generator. Both of these optional kits will include the appropriate wiring harness to be installed within the generator.
answered 8 months ago
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GeneracPowerSystems01
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Question

When purchased, does the battery and flex fuel line come with the product; or, do these items have to be purchased separately?

State: FL - Florida
Age: 55-64
This product will backup: Entire Home
asked 8 months ago
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Sugar Pie
Edgewater
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SP,

If you have the unit professionally installed, the installer will include a battery.

If you do it yourself, the battery is not included. The flex line is included in the packet containing product information (inside of the unit).

I hope this helps

Pinky
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 7 months ago
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Pinky
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Question

Group 26 battery

I had a 7000 kw model 5240 installed in 2007 I need to replace the battery the book calls for a group 26 with 350 crank minimum. Any reason I cannot use a Group 26 with 525 cold crank?

I appreciate your help.

Bu the way I love my Generac Power Generator.

Thanks
State: OH - Ohio
Age: Over 65
This product will backup: Entire Home
asked 7 months ago
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John
Columbus
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John,

I have found that the biggest problem in battery placement/replacement is the amount of room Generac allocates for the battery.

As long as it is physically the same size you are fine. You can always increase the cold cranking amount, but I would not recommend decreasing it from the stock battery.

I hope this helps,

Pinky
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 7 months ago
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Pinky
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Question

The oil on the dipstick indicates Add. How much do I add without overfilling?

asked 7 months ago
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Rob
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Rob,

It really is a matter of feel and experience. Start pouring oil in at a slow rate and gauge how fast/far the level rises. Continue until you reach the proper level.

The total oil capacity is around 1.9 quarts.

If you fill to high you can always drain some out.

Good Luck,

Pinky
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 7 months ago
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Pinky
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Question

Regulator size for 1" Natural gas piping?

This product will backup: Computer
asked 7 months ago
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rick
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Rick,

Generally the regulator is located at your gas main, and is part of the gas meter. You are able to adjust the gas pressure from this regulator.

You will branch off your gas line to the generator from the meter, or suitable gas line in the house.

I hope this helps.

Pinky
State: PA - Pennsylvania
Age: 55-64
This product will backup: Entire Home
answered 7 months ago
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Pinky
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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 7 months ago
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Anon
Upstate
on 20kW Whole House Switch
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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 7 months 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 7 months ago
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BillyD
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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 7 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 7 months ago
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Gas Powered
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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 7 months ago
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GeneracPowerSystems02
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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 6 months ago
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Ray5796
Houston
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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 6 months ago
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GeneracPowerSystems02
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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 6 months ago
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Brian
Three Lakes
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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 6 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 6 months ago
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Mike
Illinois
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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 6 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 6 months 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 6 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 6 months 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 6 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 6 months ago
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Tim
Penobscot
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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 6 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 6 months 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 6 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
 
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asked 6 months 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 6 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 6 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 6 months ago
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GeneracPowerSystems02
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Question

What does code 1900 indicate

Generac model 6258 running on LP
asked 6 months 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 6 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 5 months, 3 weeks 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 5 months, 3 weeks ago
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