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Most Recent Questions
Recent Question:
It states that the oil capacity is 20 ounces. I was able to put in 10. Does the unit ship with some oil in the crankcase?
Recent Question:
Is there a fuel shut off switch
Recent Question:
What type & length of water supply hose is recommended?
Recent Question:
Is the water pressure adjustable?
Recent Question:
Is the Generac 6132 High Pressure Surface Cleaner, 15-Inch designed to work with 6602 onewash
Questions with Most Recent Answers
Question:
It states that the oil capacity is 20 ounces. I was able to put in 10. Does the unit ship with some oil in the crankcase?
Question:
Is there a fuel shut off switch
Question:
What type & length of water supply hose is recommended?
Question:
Is the water pressure adjustable?
Question:
Is the Generac 6132 High Pressure Surface Cleaner, 15-Inch designed to work with 6602 onewash
See all Generac Questions and Answers > Residential Grade Q & A

Customer questions and answers for
Generac Power Systems OneWash Residential 6602

The OneWash™ pressure washer offers variable pressures from 2000 to 3100 PSI. It’s four pressure washers in one. You set the pressure to the cleaning task.
Customer questions and answers:
105 Questions
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119 Answers
Overall rating:
4.767 out of 5
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Customer questions and answers for Generac Power Systems OneWash Residential 6602

Question

Is there a fuel shut off switch

State: PA - Pennsylvania
Age: 55-64
asked 2 weeks, 5 days ago
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by
DC
Bethlehem
on OneWash Residential 6602
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answer 1
Yes, per the product's spec sheet, Generac's OneWash residential grade pressure washer features a fuel ON/OFF switch.
answered 2 weeks, 4 days ago
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GeneracPowerSystems02
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Question

Is the Generac 6132 High Pressure Surface Cleaner, 15-Inch designed to work with 6602 onewash

Is the Generac 6132 High Pressure Surface Cleaner, 15-Inch a 1/4inch quick connect?
State: MD - Maryland
Age: 55-64
asked 4 weeks ago
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Tony
Fort Washington
on OneWash Residential 6602
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answer 1
Generac's 15-inch surface cleaner is applicable for use on all pressure washers rated 3100 psi and below, including the OneWash residential grade pressure washer.
answered 3 weeks, 6 days ago
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GeneracPowerSystems02
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Question

Proper Oil Check Method

One Wash 6602 - Filling oil for new assembly. Confused by how manual says to check oil when adding. I believe it says to only place the dipstick at the hole and not thread in to check...but it would seem to make more sense to thread in the dipstick then remove to check oil level.

please explain which way is correct with this washer please.
State: IN - Indiana
Age: 35-44
asked 2 months, 3 weeks ago
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spl170s
Indiana
on OneWash Residential 6602
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answer 1
When checking the unit's oil level, insert the dipstick into the filler neck, but do not screw it in.
answered 2 months, 2 weeks ago
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GeneracPowerSystems02
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Question

I was told there was four tips included but found only 3 when upackaged it. Was also wondering if the green tip is the 40% spray or what it was?

State: SD - South Dakota
Age: 55-64
asked 2 months, 3 weeks ago
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by
Al
yankton
on OneWash Residential 6602
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answer 1
Generac's OneWash residential grade pressure washers come with three nozzles; a red (0°) high pressure nozzle, a green (25°) medium pressure nozzle, and a black detergent nozzle. If you have any other comments, questions or concerns, feel free to contact us directly at 888-GENERAC (436-3722).
answered 2 months, 3 weeks ago
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GeneracPowerSystems02
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Question

Best detergent to use

Is there a best detergent?
State: MI - Michigan
Age: Over 65
asked 3 months ago
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by
George
Delto
on OneWash Residential 6602
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answer 1
Per the unit’s owner’s manual, power washer-safe detergents are the only detergents that should be utilized with Generac residential grade power washers. Also, please note that any acidic solutions, (including bleach, acids, or citrus scented soaps) should be utilized and are not recommended for use. Considering this, we as the unit’s manufacturer can recommend utilizing a mild (non citrus) dish soap, or liquid auto soap, when utilizing your residential power washer’s detergent nozzle. Any damage incurred through the use of such cleaning agents would void the product’s warranty. If you have any other comments, questions, or concerns, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
answered 3 months ago
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GeneracPowerSystems02
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Question

For the Generac Onewash, do I need to dilute concentrated detergent before adding to the detergent tank?

I have Zep brand detergent that needs to be diluted 20:1.
State: AL - Alabama
Age: 45-54
asked 3 months, 1 week ago
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tegullo
Warrior
on OneWash Residential 6602
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answer 1
No, the mix rate in the chemical tank will be pulled through the high pressure water stream, staying the same through the spray gun. Also, there are many factors that can affect the dilution rate for the chemical tank, such as the GPM rate, the viscosity of the detergent being used, and the size of the orifice on the soap nozzle you are using. If you have any other product-related inquiries, please know that we can be reached 24/7 at 888-GENERAC (436-3722).
answered 3 months, 1 week ago
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GeneracPowerSystems02
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Question

Where can I buy an attachment brush to use with this pressure washer?

I am looking to wash my truck with it.
asked 3 months, 2 weeks ago
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by
Terry
on OneWash Residential 6602
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answer 1
Parts and accessories can either be purchased through an independent authorized dealer in your local area or online via the following link: http://www.ordertree.com/generac/ . To locate an independent authorized dealer closest to you, use your postal code for searching purposes here: http://www.generac.com/dealer-locat...
answered 3 months, 2 weeks ago
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by
GeneracPowerSystems02
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Question

Can it remove spray paint from concrete?

State: NY - New York
Age: 35-44
asked 3 months, 3 weeks ago
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Ramona
Queens
on OneWash Residential 6602
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answer 1
Our professional grade pressure washer models feature a spray powerful enough to strip paint. Moreover, for even more effective cleaning, a variety of detergents and accessories can be utilized with our pressure washer units. To learn more about the cleaning power of our products, feel free to explore product spec sheets via the following link: http://www.generac.com/all-products...
answered 3 months, 3 weeks ago
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GeneracPowerSystems02
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Question

Is it easy to start and how noisy is the engine?

State: GA - Georgia
Age: Over 65
 
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asked 6 months ago
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Gary
Tybee Island
on OneWash Residential 6602
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answer 1
So far no. I got a 6602-1 new out of box. After 1 hour yesterday pulling the cord and trying all the normal small engine troubleshooting steps, it would not start. Another 45 minutes this afternoon of cord pulling and still no start.

So now I have to take it 30 miles to their Denver area authorized support shop, All Seasons. Paid $400 and got a big headache for my money.
answered 4 months, 2 weeks ago
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by
dyermaker
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answer 2
When properly prepared for operation per the instructions provided in the unit's owner's manual, our OneWash residential grade power washer is fairly easy to start. Also, the unit runs quietly; unfortunately we are unable to provide a sound output rating for a residential grade power washer, as no industry standard currently exists for testing the decibel levels emitted from portable units. If you have any other product-related comments, questions, or concerns, please feel free to reach out to us directly at 888-GENERAC (436-3722).
answered 6 months ago
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GeneracPowerSystems02
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Question

Hose options

What model replacement hose should I select if I want to purchase a 50' long hose?
State: VA - Virginia
Age: 45-54
asked 5 months ago
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by
MikeG
on OneWash Residential 6602
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answer 1
Please know that we do not manufacture 50-foot extension hoses for the high pressure hose that connect to the unit’s gun, as lengthening this particular hose will reduce pressure output.
answered 5 months ago
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GeneracPowerSystems02
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Question

is the oil in this machine the same for the pump &the engine

State: FL - Florida
Age: 45-54
asked 6 months ago
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by
bobby
1989 twin lk dr,gotha
on OneWash Residential 6602
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answer 1
While the engine can utilize an SAE 30, 10W-30 or synthetic 5W-30 oil, SAE 30 should be utilized for the first 5 hours of operation. Also, the pump is pre-lubricated and sealed from the factory, requiring no additional maintenance for the life of the pump.
answered 6 months ago
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GeneracPowerSystems02
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Question

Water Temp

When using with an add-on heater what is the max water temp this unit can handle?
State: AL - Alabama
Age: 35-44
asked 8 months ago
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BSA
Dothan
on OneWash Residential 6602
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answer 1
Per the product's owner's manual, Generac's 2000-3000 PSI residential grade pressure washer, model number 6809, requires a water supply that is 100ºF in temperature or less. To locate a product's documentation online, please visit the following link: http://www.generac.com/service-supp...
answered 8 months ago
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GeneracPowerSystems02
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Question

Accessories

Well where is the one that has 4 nozzles that will do my driveway. Saw it on TV but briefly and cannot find it on your web page. I think they called it the broom.
State: LA - Louisiana
Age: Over 65
asked 10 months ago
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Terry
Lake Charles
on OneWash Residential 6602
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answer 1
All parts and accessories for our pressure washers can be located online via the following link: http://www.generac.com/all-products.... The 12" power brook can be located under "Nozzles". Please feel free to contact us at 888-GENERAC (436-3722) if there is anything else that we can help you with.
answered 10 months ago
Customer avatar
by
GeneracPowerSystems02
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Question

What nozzles would be needed to reach a second story with the Generac 6602?

State: PA - Pennsylvania
Age: 55-64
 
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asked 10 months ago
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Dadwalker
Carlisle
on OneWash Residential 6602
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answer 1
If you are concerned about being able to utilize detergent for second-story applications, we would recommend considering our 2nd Story Nozzle Kit, which includes a pink high pressure soap nozzle and blue high pressure rinse nozzle; both of these nozzles are suitable for cleaning upper floors of a standing home or building. Furthermore, we would recommend contacting an independent authorized service provider in your local area for any needed parts or products. 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 product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 10 months ago
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GeneracPowerSystems02
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Question

using non-ethanol gas

I have been told that if I have easy access to non-ethanol gas I should use it. My model pressure washer is the 6602
State: SC - South Carolina
Age: Over 65
asked 1 year, 1 month ago
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Rock
Pawleys Island
on OneWash Residential 6602
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2 answers
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answer 1
The manual says to use minimum 87 octane gasoline with no more than 10% ethanol. Using non-ethanol gas won't hurt, but you will likely pay a lot more for it. Use sta-bil in your gas container and you won't have to worry about the fuel gumming up over time, which I believe is the biggest concern with high ethanol content fuels.
State: OH - Ohio
Age: 25-34
answered 1 year ago
Customer avatar
by
Chris
Hilliard
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answer 2
Per the unit's owner's manual, Generac’s OneWash residential power washer, model number 6602, should utilize gasoline with an octane rating of 87, with no more than 10% ethanol. Utilizing a higher grade fuel will not yield any increase in power output. The unit’s manual states that the fuel must be clean, fresh, unleaded gasoline with a minimum of 87 octane/87 AKI (91 RON). Furthermore, an unapproved gasoline (such as E85) should not be utilized, nor should oil be mixed with the gasoline.
answered 1 year, 1 month ago
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GeneracPowerSystems02
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Question

Why would my generac lose pressure?

State: OH - Ohio
asked 1 year, 1 month ago
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by
Ken
Columbus
on OneWash Residential 6602
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answer 1
Multiple causes can potentially limit the pressure provided by your residential grade pressure washer. Most notably, pressure may be lost if the water supply is not provided to the unit at a rate of at least 3.8 gallons per minute, and no less than 30 PSI. Also, if the hose is kinked, or if debris is blocking the water's flow, pressure may be limited as well. Unfortunately, we are unable to determine the exact cause of any pressure-related issues via online correspondence. If you are able to confirm that the water supply is being provided at the appropriate rate, and that kinks or debris are not limiting the water's flow rate, we would recommend contacting a local 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.... Furthermore, if you would like to discuss these issues with us directly, we can be reached 24/7 at 888-GENERAC (436-3722). We hope you find this information to be helpful.
answered 1 year, 1 month ago
Customer avatar
by
GeneracPowerSystems02
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Question

cost of product?

asked 3 years, 4 months ago
Customer avatar
by
Jay
on OneWash Residential 6602
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2out of 6found this question helpful.
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answer 1
About $400
State: MO - Missouri
Age: 45-54
answered 1 year, 2 months ago
Customer avatar
by
georgearchibald
United States
+1point
1out of 1found this answer helpful.
answer 2
With the ad posted the price is;
Starting At
$399.00 MSRP
State: GA - Georgia
Age: 45-54
answered 2 years ago
Customer avatar
by
gepperso
Winder
+1point
1out of 1found this answer helpful.
answer 3
For current pricing and availability in your area, you will want to contact your local dealer. To locate a dealer in your area, search your postal code here: http://www.generac.com/Service/Deal....
answered 3 years, 4 months ago
Customer avatar
by
GeneracPowerSystems01
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Question

Paint Removal??

Is this unit suitable for paint removal from wood surfaces? Specifically old sheds? Or would a different unit be better? If so, is a special tip required? Or would one of the included ones work?
State: MN - Minnesota
Age: 35-44
asked 1 year, 2 months ago
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Shannon
Glencoe
on OneWash Residential 6602
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answer 1
Generac's OneWash residential grade pressure washer, model number 6602, would be suitable for performing a variety of tasks, such as removing paint from wood surfaces, as long as the proper nozzles and settings are utilized. To ensure that you are utilizing the unit at an appropriate setting, along with the appropriate accessories, for your desired cleaning task(s), we would recommend referring to your unit's owner's manual. To locate this detailed information online, please use the model or serial number of your unit for searching purposes here: http://www.generac.com/service-supp.... If you have any other product-related comments, questions, or concerns regarding a particular product, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
answered 1 year, 2 months ago
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by
GeneracPowerSystems02
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Question

Soap and Hose

We bought the unit in August 2014, but we just used it in our home today. We would like what is the best soap to use, and most of all, the plastic hose going into the soap container is very loose. Is there a stopper to cover the hose, so the soap doesn't blow out from the hole? please advise.
State: FL - Florida
Age: Over 65
asked 1 year, 2 months ago
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Steve
Davenport
on OneWash Residential 6602
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answer 1
Power washer-safe detergents are the only detergents that should be utilized with Generac residential grade power washers. Also, please note that any acidic solutions, (including bleach, acids, or citrus scented soaps) should be utilized and are not recommended for use. Considering this, we as the unit’s manufacturer can recommend utilizing a mild (non-citrus) dish soap, or liquid auto soap, when utilizing your residential power washer’s detergent nozzle. Any damage incurred through the use of alternative cleaning agents would void the product’s warranty.

Lastly, please note that we do not manufacture any stoppers or restrictive parts for detergent use. To ensure that your unit is able to optimally perform when utilizing detergent, be sure to insert the filter on the end of the siphoning tube through the hole in the chemical tank cap, and make sure the siphoning tube remains fully submerged in the detergent. All of the aforementioned information can also be located in your product’s owner’s manual. To locate your unit’s documentation online, please use the product’s model or serial number for searching purposes via the following link: http://www.generac.com/service-supp.... If you have any other comments, questions, or concerns, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
answered 1 year, 2 months ago
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GeneracPowerSystems02
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Question

Why does my Onewash shut down after running only 10 minutes?

I have a one year old OneWash with maybe 4 hours of operation. Starts up OK but after running for 10 minutes or so it cuts off.. Starts up again OK but only runs for a minute and then cuts off again. Then on for another minute before stopping again. Water supply, gas and oil supply OK. Almost seems like it gets too hot and shuts down. What came I do to keep it running?
State: MD - Maryland
Age: Over 65
asked 1 year, 3 months ago
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Paul
Baltimore
on OneWash Residential 6602
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answer 1
We are sorry to learn of the issues that you are currently experiencing with your residential grade power washer. In addition to the checks that you have made, we would also recommend checking whether or not the unit's spark plug is appropriately wired or requires replacing. Additionally, if the unit ever bogs down or shuts down during operation, we would recommend checking the unit's air cleaner and replacing it if it is dirty. Also, if the fuel is stale, or if there is water in the fuel, we would recommend draining the unit and re-filling the washer with fresh fuel. Lastly, if your unit is filled with an excessively rich fuel mixture, or if all recommended checks can be performed and issues persist thereafter, we would recommend contacting an independent authorized service provider for any required servicing. To locate an independent authorized service provider closest to you for diagnostic work, 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 1 year, 3 months ago
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GeneracPowerSystems02
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