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Most Recent Questions
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GP5500 transfer switch
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can i get the gp3250 with electric start?
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GP15000E: 30A or 50A receptacle
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does the gp7500e have a floating ground? if not can it be converted and do the instructions come with it?
Questions with Most Recent Answers
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Where can I buy replacement battery charger cable?
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GP5500 transfer switch
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can i get the gp3250 with electric start?
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GP15000E: 30A or 50A receptacle
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does the gp7500e have a floating ground? if not can it be converted and do the instructions come with it?

Customer questions and answers for
Generac Power Systems GP5500

Customer questions and answers:
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256 Answers
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Customer questions and answers for Generac Power Systems GP5500

Question

Does the GP5500 need to be grounded with a grounding rod?

I've recently purchased a new unit and want to be prepared the next time power is lost. I've been told to make sure I attach the generator to a grounding rod when I need to use it. Is this true?
State: MD - Maryland
This purchase was for: Home Backup Power
asked 3 years ago
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SN
Baltimore
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Yes, we do recommend grounding the generator. This advice, from the owner's manual:

"The National Electrical Code requires that the frame and external electrically conductive parts of this generator be properly connected to an approved earth ground.

Local electrical codes may also require proper grounding of the unit. For that purpose, connecting a No. 10 AWG (American Wire Gauge) stranded copper wire to the grounding lug and to an earth-driven copper or brass grounding rod (electrode) provides adequate protection against electrical shock. However, local codes may vary widely. Consult with a local electrician for grounding requirements in the area.

Proper grounding of the generator will help prevent electrical shock in the event of a ground fault condition in the generator or in connected electrical devices. Proper grounding also helps dissipate static electricity, which often builds up in ungrounded devices."
answered 3 years ago
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Question

quiet muffler for GP5500

do you offer a quieter muffler for this unit .. it is way tooooo loud. there must be something I can do to turn down the noise???
asked 3 years ago
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mark
on GP5500
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At this time, Generac does not offer any accessories to reduce the noise level on any of our portable generators.
answered 2 years, 11 months ago
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GeneracPowerSystems
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Question

tri-fuel conversion kit

I want to convert my gasoline driven generator to a tri-fuel generator.
State: MA - Massachusetts
Age: 45-54
This purchase was for: Home Backup Power
asked 3 years ago
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gbonafilia
Holyoke
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answer 1
Generac does not recommend a conversion of this type. Such a conversion would also void the warranty.
answered 3 years ago
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GeneracPowerSystems
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Question

Can the GP5500 be converted for use with natural gas?

State: OR - Oregon
Age: 35-44
This purchase was for: Home Backup Power
asked 3 years ago
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rc
Sandy
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answer 1
At this time, Generac does not offer any accessories or conversion kits for its portable generators to run on natural gas. We also do not recommend such conversion, for safety and performance reasons. If you are considering a natural gas generator, we recommend Generac's CorePower automatic home backup generator. This unit runs on your home's existing natural gas fuel supply, is connected directly to your home's electrical system, and turns on and off automatically in the event of a power outage. With an MSRP of $1799, it is comparable in price to many larger portable generators, but offers you the benefits of an automatic home backup solution.
 
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answered 3 years ago
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Question

Operating Computer Equipment / Sensitive Electronics

Is the GP5500 recommended at all for the operation of computer type electronic devices? I ran it for one week during this past storm outage and during that time it seems that my adding machine had an issue and stopped working. As I have already purchased it, if it is not recommended for this use, is there some sort of line conditioner that can be placed in line before it is used in my home? As I rent this home, there will be no permanent installation with the exception of a manual transfer switch. Thank you.
State: CT - Connecticut
This purchase was for: Home Backup Power
asked 3 years ago
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Far2hip
on GP5500
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answer 1
The GP Series portable generators have a track record of safely and effectively powering appliances and electronics of all kinds. However, a line conditioner can be placed in line before the power goes to your home. You can select line conditioners from your local electronics wholesaler or retailer.
answered 3 years ago
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Question

Is the GP5500 brushless?

asked 3 years ago
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eric
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answer 1
The alternator on the GP5500 is brushed, with automatic voltage regulation.
answered 2 years, 11 months ago
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Question

what is the THD of the GP5500

State: CT - Connecticut
Age: 55-64
This purchase was for: Home Backup Power
asked 3 years ago
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searayjoe
Hartford
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answer 1
This unit has a THD of less than or equal to 28%.
answered 2 years, 11 months ago
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Question

can you make the 5500 generator elctric start

State: PA - Pennsylvania
Age: 55-64
This purchase was for: Home Backup Power
asked 3 years ago
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b weaver
nazareth
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answer 1
At this time, Generac does not have any accessories available to convert a pull start unit to electric start.
answered 3 years ago
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GeneracPowerSystems
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Question

What type of alternator does the gp5500 have?

This purchase was for: Home Backup Power
asked 3 years ago
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allen
on GP5500
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answer 1
The alternator is a brushed alternator with voltage regulation.
answered 2 years, 11 months ago
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Question

Whats the differance between the 5737 and5939 ?

State: MA - Massachusetts
Age: 55-64
asked 3 years ago
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Paul
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answer 1
Functionally both units are the same. The 5939 has been approved for sale in all states except California, which has more strict emissions requirements. The 5737 has been approved for sale in California.
answered 3 years ago
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GeneracPowerSystems
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Question

Does GP5000, 5500 and 6500 have the same 389cc OHV engine?

The engine spec in all these three models is 389cc. Are they the same engine powering different output generator or are they slightly modified engines to match the different sized gen. Also, are the engines manufactured oversea as with the whole machine? Thank you!
State: MA - Massachusetts
Age: 45-54
This purchase was for: Home Backup Power
asked 3 years ago
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MinMet
Worcester
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answer 1
They are the same engine on all three units. The modifications are made to the alternator to allow for additional output in the larger units.

These engines are manufactured to our specifications by a partner overseas.
answered 2 years, 11 months ago
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Question

is there an extension cord available from the GP5500 to a clothes dryer plug

State: MA - Massachusetts
Age: 45-54
This purchase was for: Home Backup Power
asked 3 years ago
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tom
worcester
on GP5500
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answer 1
We can't emphasize enough the danger associated with connecting a portable generator directly to your home's electrical system via one of the existing receptacles, like your dryer plug. This is called backfeeding, and during an outage it can send electricity back over utility power lines and injure or kill utility workers. Additionally, when utility power does return, it can damage your generator and your home's electrical system, and even cause a fire.

You can, however, safely connect a portable generator to your home's electrical supply with a manual transfer switch. A manual transfer switch acts as an interface between the generator and your home's electrical supply. Generac does not manufacture manual transfer switches, but an electrician or authorized Generac dealer (http://goo.gl/fDlS1) can recommend one for you. To work properly, you will need a three-pole transfer switch. Additionally, because Generac portable generators are bonded neutral while most transfer switches are floating neutral, you will need a transfer switch that also switches the neutrals.
answered 3 years ago
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GeneracPowerSystems
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Question

width of generator

can someone tell me the actual width of the gp6500 and gp5500
without the wheels attached?
thank you
asked 3 years ago
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wolf
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It is approximately 20.6" wide.
answered 2 years, 10 months ago
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Generac1
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Question

Portable Generator Shelter

I know I need to run my new generator outside about 15 feet away from my house. Since it's likely that when I'll need it for backup power, the weather conditions will not be ideal, how well do I need to protect it from the rain/ and snow? I'm thinking about building a basic teepee style "sandwich board" cover out of two 4x4 pieces of plywood and a piano hinge (leaving two sides open for ventilation). Any suggestions/reccomendations?
State: PA - Pennsylvania
Age: 35-44
This purchase was for: Home Backup Power
 
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asked 3 years ago
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Tom
Exton
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answer 1
While we appreciate what you are trying to accomplish, we do not recommend any kind of shelter or cover for the generator while it is in operation. Such a shelter/cover could impede ventilation, contact hot surfaces, etc., which could lead to safety issues, as well as result in issues with generator performance.
answered 2 years, 11 months ago
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GeneracPowerSystems
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Question

what is the decibel rating of gp5500 when the generator is running?

For purposes of comparison, how loud is the gp5500 generator?
Please supply the decibel rating when the generator is running at either full load or half load or both.
State: NH - New Hampshire
asked 3 years ago
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SRG
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Generac does not test the sound level of its portable generators, because there is no industry standard, and any results could be misleading. However, the sound level of this generator is comparable to many portable generators on the market.
answered 2 years, 11 months ago
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GeneracPowerSystems
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Question

Grounding a GP5500 connected to transfer switch

During an outage I would connect my new GP5500 to my home via a transfer switch using the cord with the l14-30 connector. When I wired the transfer switch, I connected the green ground wire to the panel ground bus. Is this sufficient ground or would Generac still recommend a grounding rod be connected?
State: MA - Massachusetts
Age: 35-44
This purchase was for: Home Backup Power
asked 2 years, 11 months ago
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John
North of Boston
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answer 1
We recommend consulting with an authorized Generac dealer who can offer advice based upon your specific application. To find one near you, please visit http://www.generac.com/Service/Deal.... Also, Generac portable generators require three-pole manual transfer switches. Additionally, because all Generac portable generators are bonded neutral and most manual transfer switches are floating neutral, you need a transfer switch that also switches the neutrals.
answered 2 years, 11 months ago
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GeneracPowerSystems
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Question

Does this come with any power cord outlets?

asked 2 years, 11 months ago
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Rachel.B
on GP5500
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answer 1
It sounds like you are asking about a power cord. This unit does not include a power cord.
answered 2 years, 11 months ago
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GeneracPowerSystems
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Question

What brand of engine do the generators have?

State: NH - New Hampshire
Age: 55-64
This purchase was for: Home Backup Power
 
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asked 2 years, 11 months ago
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otot
Merrimack
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answer 1
This unit features a Generac OHV engine.
answered 2 years, 11 months ago
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GeneracPowerSystems
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Question

can i get 240 volts from both 120 volt receptacles

asked 2 years, 11 months ago
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sonny
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answer 1
No, that is not possible.
answered 2 years, 10 months ago
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Generac1
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Question

Do not have one

On the GP5500 portable generator is the 2.3.2 120/240 vac 30 amp receptacle (in figure6) in the owner's manual protected with a GFCI breaker in it? If so, with the neutrals that are bonded to the frame, will this create a problem with an electrician who plans to hook up a interlock kit to my home circuit board? If this is not possible and the electrician instead hooks up a transfer switch alongside my circuit panel should such trabsfer switch contain a 3 pole switch that enables neutrals to be switched?
State: MA - Massachusetts
Age: 55-64
This purchase was for: Home Backup Power
asked 2 years, 11 months ago
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Buford
on GP5500
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answer 1
The 30A receptacle is not GFCI protected. However, for this unit to function properly with a manual transfer switch (we always recommend using a manual transfer switch with our portable generators), you will need one that is a 3-pole switch, and one that also switches the neutrals.
answered 2 years, 11 months ago
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