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Most Recent Questions
Recent Question:
does the hose rotate in the back of the gun
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Does the water supply need to be under pressure or will it pull water from a large tank?
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Is using fully synthetic oil a good option?
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Input water temperature
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Does the water supply need to be under pressure or will it pull water from a large tank?
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Does it have variable pressure & does the handle fold down?
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does the hose rotate in the back of the gun
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Customer questions and answers for
Generac Power Systems OneWash Residential 6602

Customer questions and answers:
82 Questions
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91 Answers
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Customer questions and answers for Generac Power Systems OneWash Residential 6602

Question

does the hose rotate in the back of the gun

if the hose doesn't rotate in the gun it's very difficult to coil the hose by yourself
State: NC - North Carolina
Age: 55-64
asked 4 weeks ago
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by
sassyDAWG
Havelock
on OneWash Residential 6602
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answer 1
The gun on Generac’s OneWash residential grade power washer, model number 6602, does not rotate in the back of the unit’s gun; it will be held firmly in place. If you are unable to recoil the hose appropriately, we would recommend rotating the gun manually, as needed. If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 3 weeks, 3 days ago
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by
GeneracPowerSystems02
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Question

Input water temperature

What is the max input water temp recommended?
State: NY - New York
Age: Over 65
asked 1 month, 1 week ago
Customer avatar
by
Stew
6740 W Hill Rd
on OneWash Residential 6602
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answer 1
Hot water is not recommended for use on Generac’s residential grade OneWash power washer, model number 6602; we recommend ensuring that you use only cold water (less than 100°F). Utilizing water below the 100°F recommendation will help to ensure that the pump stays cool during operation.
answered 1 month, 1 week ago
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by
GeneracPowerSystems02
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Question

Why does water come through the Wand all the time the motor is running?

I have a Onewash which when all in operation mode sprays water constantly through the nozzle regardless of which nozzle is attached. The water sprays with some pressure. Squeezing the trigger increases the pressure to full power. Is this normal?
State: NY - New York
Age: 55-64
asked 1 month, 1 week ago
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by
pewatson41
Alexandria Bay
on OneWash Residential 6602
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answer 1
Although not recommended by the manufacturer, I dismantled the gun and determined that the ball seat had unseated itself somehow and was preventing the valve from closing properly. Once the Seat was positioned correctly the valve fully closes and the washer operates without using excessive water. The staff suggestion to contact a distributor would have resulted in them selling me another gun.
State: NY - New York
Age: 55-64
answered 1 month, 1 week ago
Customer avatar
by
pewatson41
Alexandria Bay
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answer 2
When the trigger is not being pulled on Generac’s OneWash residential power washer, model number 6602, water should not be flowing out of the tip of the wand and associated nozzle. If problems persist after confirming that each nozzle is appropriately applied, we would recommend contacting an independent authorized service provider to have the unit’s current issues properly diagnosed. 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....
answered 1 month, 1 week ago
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by
GeneracPowerSystems02
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Question

GENERAC 6602

This unit no longer has the low water and oil alerts.. how come? I looking to buy a unit and it seems these features would be very handy to avoid any issues.
State: FL - Florida
Age: 35-44
asked 1 month, 1 week ago
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by
Vince
on OneWash Residential 6602
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answer 1
While Generac’s OneWash power washers previously featured low oil/water alerts, model number 6602 does not feature these particular alarms. However, the unit will still shut down for low water, and checking the oil level each time the unit is started, and ensuring proper connections are applied to the power washer, should alleviate any concerns regarding low oil or water levels within the unit. To inquire about which products bestow specific features associated with your product-related desires, please contact us directly at 888-GENERAC (436-3722).
answered 1 month, 1 week ago
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by
GeneracPowerSystems02
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Question

Why on initial oil fill it takes less than 20oz

Filling engine with oil for the first time.
Using the provided 20oz oil bottle and HANDY funnel (thanks for that) it over filled and ran out all over ground.

WARNING TO OTHER NEW OWNERS.

What a mess. I would say it only needed about 16 oz after cleaning up mess and then tipping sideways to get Excess out.

Best change directions to: "add small amounts and continue to check to ensure you do not overfill."

Also the dip stick stinks due to the extreme flat angle you do not get a very accurate reading especially removing from the tight location.

Need a vertical dipstick if that means an autmotive tube type or not.

yeah I am geeky engineer.
State: MS - Mississippi
Age: 45-54
asked 1 month, 3 weeks ago
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by
ygmn
Carriere
on OneWash Residential 6602
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answer 1
The OneWash Residential Series Power Washer will have an oil capacity of 20 ounces (0.6 liters). The “H” on the dipstick is the high (full) mark. When adding oil, it should be added to the “H” marking. Please note that these units are tested at the factory, and there may be oil left in the crankcase. Always utilize the dipstick when adding oil to ensure that the unit is not overfilled.
During operation, when the oil level reaches the “L” mark, that means the oil level is low, and oil should be added. The oil capacity information, as well as other specifications for this unit, are located in the Product Specifications section of the owner’s manual. To locate a copy of the owner’s manual online, search the model or serial number for the unit here: http://www.generac.com/Service/Manu....
answered 1 month, 3 weeks ago
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by
GeneracPowerSystems02
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Question

Maximum supply hose length

The manual states that the maximum supply hose length is 50 feet. I understand that some homes do not have adequate supply pressure from the source which could cause the pump to starve for water. If my pressure is good can I not go to a 75 foot hose at least? It really limits where I can use it as I have a large property.
State: ON - Ontario
Age: 55-64
 
Products related to my question
 
asked 1 month, 4 weeks ago
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by
Habman
Hamilton
on OneWash Residential 6602
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answer 1
Per the unit’s owner’s manual, the maximum supply provided should be 50 feet; this is to provide the appropriate amount of pressure through the hose provided to the unit. We do not have any recommendations on how to expand passed this specified length, and any damage incurred to the unit when utilizing the unit in a manner that is not recommended will not be covered under the product’s warranty. If you have any other product-related comments, questions, or concerns, please contact us directly at 888-GENERAC (436-3722)
answered 1 month, 4 weeks ago
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by
GeneracPowerSystems02
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Question

What setting to use "OneWash" cleaning 2nd story wood siding?

I have a 2 1/2 story home with wood siding. What settings on my OneWash would be best for cleaning that high?
State: ID - Idaho
Age: 55-64
asked 2 months, 3 weeks ago
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by
rkshost
Ammon
on OneWash Residential 6602
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answer 1
House setting with an extension and green tip. Extensions are sold separately.
State: FL - Florida
answered 1 month, 4 weeks ago
Customer avatar
by
Cleaner
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answer 2
The factory set pressure for the Generac’s residential power washer, model number 6602, is 3100 PSI. Due to the variation in engine speed, which is customer controlled with the throttle control, the PSI range, and pressure stream range, can vary. The unit will also come with 3 different nozzles, a 0°, 25°, and a soap applicator nozzle, each designed to tailor the stream of water to the job. Generac’s 3100 psi Power Washer is applicable to use on vinyl siding, so long as the appropriate nozzle is utilized. When utilized for cleaning siding, the unit is designed to be used with the black soap nozzle and the green 25° “wash” nozzle. The 25° “wash” nozzle has a rated pressure of 2600 psi. This pressure will be suitable for cleaning the siding on one or two story heights, but as the distance between the nozzle and the cleaning surface increases, the cleaning power decreases. The 0° red nozzle is the high pressure nozzle, and 25° green nozzle is a medium pressure nozzle. Always ensure you are aiming the wand in a safe direction, as the high pressure stream of water this equipment produces can cut through skin and its underlying tissues, which could lead to serious injury. Utilizing the proper pressure nozzle will ensure that the unit is effectively utilized on surfaces higher than ground level. Further information on the nozzles included and their suggested uses can be found in your owner’s manual. If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 2 months, 3 weeks ago
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by
GeneracPowerSystems02
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Question

i have tried every water source, and input hose lengths, but still cant make unit work properly.. what is the minimum gpm/psi of the input water ??

State: PA - Pennsylvania
Age: 45-54
asked 2 months, 3 weeks ago
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by
dan
northern cambria
on OneWash Residential 6602
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answer 1
The water supply must be adequate to handle greater than 3.8 gallons per minute and no less than 30 psi. We do not recommend siphoning standing water for the water supply, and ensure that you use only cold water (less than 100°F). Moreover, if you plan on attempting to utilize a water tank, the garden hose that connects from the water source to the generator would need to be attached appropriately, so as to provide the necessary water flow to your residential power washer. If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 2 months, 3 weeks ago
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by
GeneracPowerSystems02
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Question

if you have a water tank would I need a water pump to connect

State: NC - North Carolina
Age: 25-34
asked 2 months, 3 weeks ago
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by
Carl
on OneWash Residential 6602
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answer 1
Generac’s power washers are manufactured for use in conjunction with a pressurized water source. The water supply must be adequate to handle greater than 3.8 gallons per minute and no less than 30 psi. We do not recommend siphoning standing water for the water supply, and ensure that you use only cold water (less than 100°F). Moreover, if you plan on attempting to utilize a water tank, the garden hose that connects from the water source to the generator would need to be attached appropriately, so as to provide the necessary water flow to your residential power washer. If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 2 months, 3 weeks ago
Customer avatar
by
GeneracPowerSystems02
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Question

how much does it weight

State: NC - North Carolina
Age: 25-34
asked 2 months, 3 weeks ago
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by
cj
Raleigh
on OneWash Residential 6602
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answer 1
Generac’s OneWash residential power washer, model number 6602, weighs 68.5 pounds. For further information regarding this unit, please use the product’s model or serial number for searching purposes via the following link: http://www.generac.com/service-supp....
answered 2 months, 3 weeks ago
Customer avatar
by
GeneracPowerSystems02
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Question

does pump on one wash require oil book dosent say

State: KY - Kentucky
Age: Over 65
asked 3 months ago
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by
frank
payneville
on OneWash Residential 6602
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answer 1
The only oil that needs to be added to the unit would be via the engine’s oil fill points; the pump does not intake oil via a separate fill-point. If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 3 months ago
Customer avatar
by
GeneracPowerSystems02
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Question

cost of product?

asked 1 year, 7 months ago
Customer avatar
by
Jay
on OneWash Residential 6602
-3points
1out of 5found this question helpful.
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Answers
answer 1
With the ad posted the price is;
Starting At
$399.00 MSRP
State: GA - Georgia
Age: 45-54
answered 3 months, 1 week ago
Customer avatar
by
gepperso
Winder
0points
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answer 2
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 1 year, 7 months ago
Customer avatar
by
GeneracPowerSystems01
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2out of 4found this answer helpful.
Question

generac one wash 6602

what spray tips can i use with the 6602, red is too thin for drive way, and green is not listed to be used on MAX setting for drive way.

Are there any other spray tip i can use on MAX setting for my drive
way?

Thank yopu very much!
State: FL - Florida
Age: Over 65
asked 4 months, 1 week ago
Customer avatar
by
Lee
New Smyrna Beach
on OneWash Residential 6602
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answer 1
I purchased the Turbo Nozzle with my One Wash, and it works great on the drive way, it is very quick rotating spray and makes the job go faster.
State: GA - Georgia
Age: 45-54
answered 3 months, 1 week ago
Customer avatar
by
gepperso
Winder
0points
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answer 2
I purchased a 40 degree tip and it works great on my patio and drive.
State: MI - Michigan
Age: Over 65
answered 4 months, 1 week ago
Customer avatar
by
Larry
Jenison
0points
0out of 0found this answer helpful.
answer 3
When utilized for cleaning, Generac’s OneWash residential power washer, model number 6602, when utilized for cleaning siding, is designed to be used with a black soap nozzle, red 0° “blast” nozzle, and a green 25° “wash” nozzle. The 25° “wash” nozzle has a pressure range up to 2600psi. As the distance between the nozzle and the cleaning surface increases, the cleaning power decreases. The red 0° “blast” nozzle delivers between 3000-3100psi, but is only meant to be used on the brick/concrete application setting to remove stubborn stains from masonry and concrete surfaces. This red nozzle is used infrequently and should be used with caution, as it can cause unintentional damage to surfaces. Besides these three nozzles, the only other nozzle offered for cleaning purposes is a turbo nozzle, which can be purchased through local retailers. If you have any other product-related inquiries, or would like to learn more about where you could acquire the turbo nozzle, please contact us directly at 888-GENERAC (436-3722).
answered 4 months, 1 week ago
Customer avatar
by
GeneracPowerSystems02
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Question

What is the difference between the 6602 and the 6413 models?

State: NJ - New Jersey
Age: 35-44
asked 3 months, 1 week ago
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by
Todd
New Jersey
on OneWash Residential 6602
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answer 1
There are many similarities and a few slight differences between Generac’s OneWash power washers, model numbers 6602 and 6413. Both of these units feature a spray gun, 20” lance with quick connect features, a 30 ft. high pressure hose, recoil starter, and choke mechanism. Moreover, both of these units feature a thermal relief valve, Power Dial, and drainable chemical tank; the thermal relief valve cycles water through the unit’s axial cam pump when water reaches 125°F, thereby preventing potential damage to the pump, and the Power Dial provides optimal cleaning power for each desired application. Each pump also comes with 3 different nozzles for optimal cleaning; the Blast (0°), Wash (25°), and detergent nozzles can be utilized for various high pressure cleaning applications. Both units also feature a constant flow rate of 2.8 GPM, and an oil capacity of 20 ounces. Also, both units operate between 2000 and 3100 psi.
The key difference between these two models IS that model number 6413 features a System Alert LED, which monitors the engine’s oil level and water supply pressure; while both feature a Low Water Shutdown, only model number 6413 has an LED warning depicting such a shutdown. The engine will shut down to protect the unit, and a fault indicator light will display on the control panel. Also, model number 6413 features a Low Oil Shutdown and associated alert, that of which is not featured on model number 6602. For further specifications or information regarding either of these units, please use the product’s model number for searching purposes here: 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 3 months, 1 week ago
Customer avatar
by
GeneracPowerSystems02
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Question

Why does this only have 3 spray tips?

won't having only 3 tips greatly limit its use and ability? why would they only offer 3 tips?
asked 3 months, 2 weeks ago
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by
bobby
on OneWash Residential 6602
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answer 1
The three nozzles that come with this unit are the 0° (high pressure), 25° (medium pressure), and soap applicator nozzles, all of which provide three different types of pressure. Also, while the unit operates continuously between 2000 and 3100psi, in contrast to other residential power washers, the PowerDial Variable Pressure Control on Generac’s OneWash residential power washers also provides total control at the turn of a dial. This feature easily adjusts the intensity of the spray to clean a wide range of surfaces with a single, easy-to-use control. Further information on this unit can be obtained online, by visiting the following link: http://www.generac.com/all-products....
answered 3 months, 1 week ago
Customer avatar
by
GeneracPowerSystems02
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Question

What is the length of the pressure hose ?

State: TX - Texas
Age: Over 65
asked 1 year, 7 months ago
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by
happy2Bretired
Fort Worth
on OneWash Residential 6602
+1point
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answer 1
30 feet.
State: MI - Michigan
Age: 45-54
answered 3 months, 2 weeks ago
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by
PainterJim
Grand Rapids
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answer 2
the hose is 30 feet
State: FL - Florida
Age: 55-64
answered 7 months ago
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by
hector52
Orlando
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answer 3
The OneWash Series Power Washer will come with a 30 foot long ¼” diameter pressure hose that utilizes M22 threaded connections.
answered 1 year, 7 months ago
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by
GeneracPowerSystems01
+2points
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Question

what is the size of the drain plug and can I pore chemical directly into detergant tank and not use siphon hose

not sure which oil drain plug to use to change oil ther appears to be 2 plugs also what size is the plug is it metric or Sae

is it ok to pore the chemical directly in the detergant tank and not use the sphion hose
State: TX - Texas
Age: Over 65
asked 3 months, 3 weeks ago
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by
Barry
Plano TX
on OneWash Residential 6602
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answer 1
Generac’s OneWash residential power washer, model number 6602, features two oil drain plugs that measure approximately 1 cm wide. Also, the detergent siphon hose on the unit connects directly to the pump via the siphon connection point described in the unit’s owner’s manual. The other end of the siphon hose is to be placed in a container of detergent; the pump pressure provides the necessary suction to incorporate the detergent into the high pressure water stream. Furthermore, please note that the black detergent nozzle, is the only nozzle that should be connected, when utilizing detergent. Also, any damage incurred to the unit if/when attempting to attach such a container, or siphon the detergent in any other manner will not be covered by 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, 2 weeks ago
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by
GeneracPowerSystems02
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Question

generac. onewash

I just bought and used the onewash. . I love it.. I only have a question about how I can adjust the detergent intake. It used a gallon of detergent very fast...can I buy an accessory if no adjustments can be made
State: CT - Connecticut
Age: 35-44
asked 3 months, 3 weeks ago
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by
pro
Fairfield county
on OneWash Residential 6602
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answer 1
Generac’s OneWash residential power washer, model number 6602, features a constant detergent intake; there is no way to manually adjust the rate of intake, nor is there an accessory for modifying the product. If you believe that you using too much detergent, it can be diluted further for your chosen purpose. Please note that any adjustments made to the unit may cause unintentional damage and will thereby void the product’s warranty. If you have any other product-related inquiries, please contact us directly at 888-GENERAC (436-3722).
answered 3 months, 3 weeks ago
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by
GeneracPowerSystems02
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Question

What type of chemical Injection system doew the 6602 One wash use is it up line or down line

State: TX - Texas
Age: Over 65
asked 4 months, 2 weeks ago
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by
Barrylsu
Plano
on OneWash Residential 6602
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answer 1
Generac’s OneWash residential power washer, model number 6602, features an upstream detergent injection system. For further product information, please use the product’s model or serial number via the following link: http://www.generac.com/service-supp....
answered 4 months, 2 weeks ago
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by
GeneracPowerSystems02
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Question

Can I use "Boat Soap" as the detergent in model 6602 or 6413 when cleaning my fiberglass boat?

State: MD - Maryland
Age: 55-64
asked 4 months, 3 weeks ago
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by
SeaHarley
Parkville
on OneWash Residential 6602
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answer 1
I believe the GENERAC Support Staff person meant to write, SHOULD'NT... as in you shouldn't use acidic solutions.

when they stated, "Also, please note that any acidic solutions, (including bleach, acids, or citrus scented soaps) should be utilized and are not recommended for use. "

Misuse of a contraction in English entirely changes the meaning. :)
State: WA - Washington
Age: 45-54
answered 4 months, 2 weeks ago
Customer avatar
by
WilliamClay
Seattle
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answer 2
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 solultions, (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 4 months, 3 weeks ago
Customer avatar
by
GeneracPowerSystems02
+1point
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