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Karcher 3.190 breaks hose coupling connector

Hi, I have a Karcher 3.190 and it has broken 3 x coupling connectors that connect to the garden hose (connected to the mains water supply). I now use brass, but they don't appear to last very long either. Any suggestions?

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Use high quality brass fitting, low quality brass will break also,replace male and female side with matching brands

Posted on Apr 21, 2014

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Had the Northstar 3000 psi Pressure Washer for 2

It is easy to check if your hose and quick connects are supplying enough water to the pump. Your pressure washer gallon per minuite requirements are printed on the machine and also on the pressure tips in GPM. Your post indicates 2.5 gpm but check your documentation of GPM. Next remove the tip from the wand and connect your hose with current quick connects to the machine. Start engine and direct the pressure wand into a bucket for exactly one minute. Measure the amount of water in the bucket, it should be very close to stated gallons. Do the same test with tip installed and compare measurement. If pump is starving for water you will not get proper amount of water in the bucket and the water hose will collapse. Two to four gallons of water per minute is not very demanding and should be delivered even with very small opening. You can even just direct the hose into the bucket for one minute and check how much water your hose is capable of delivering. I believe that you will find no problem with water delivery to pump. I would certainly enlighten Northern with your findings and question their evaluation. When you start using your pressure washer again try using it at lowest pressure to get the job done. Lowering the pressure to about 75% of max will increase the life of the pump and engine. Good luck with you pump

Posted on May 10, 2009

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SOURCE: I have a 3000 psi karcher pressure washer with

sounds like you need a seal and bladder rebuild < if you liver in a cold environmet for winters please dont forget to winterize your washres every year before winter

Posted on Sep 15, 2009

  • 250 Answers

SOURCE: The motor keeps surging

If there's a lot of sediment in your water supply, there's a chance that sediment has gummed up the pressure switches. I'm assuming it has a full power switch and high power switch. It runs on full power until a pressure switch is satisfied, and runs on low power to slowly build the pressure back up, at which a second switch is satisfied from the pressure and turns the motor off. These things are not easy to work on, and are made of metal probably too fragile to try any chemicals. You should probably contact the manufacturer.

Posted on Sep 19, 2009

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cool78259
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SOURCE: My Karcher 330 M has blown two water inlet (

I have a larger gas powered karcher, just make sure the water going to your karcher is not obstructed from its path. on mine i bought a goodyear hose that can be purchased at northern tools or any hardware store. and use it just for pressure washing. good luck!

Posted on Jan 04, 2011

bigomoe
  • 12 Answers

SOURCE: LOST KARCHER INSTRUCTION BOOK, ARE INSTRUCTIONS ON LINE

Here is the offical link to manuals and warranty cards for the residential models of Karcher Pressure Washers
.
http://www.karcherresidential.com/us/Service/usermanuals.htm

Posted on Mar 04, 2012

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1 Answer

Karcher Leaking from Back or inside...Help please


Karcher pressure washers are very sensitive to over-winter freezing. The plastic parts break, and you have to replace all of the leaking parts.
You may be missing a locking tab, without seeing the thing apart next to the exploded parts view, it's really hard to tell. Search google for "karcher parts", and put in your model number...

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It probably broke off from a Tee fitting. Three hoses connect at one junction point. After it breaks off, you will only see two hoses that look like a single hose, but with a plastic connector holding them together. Also at that junction point, you will have a hole in the plastic connector, where the hose that came off the carb belongs. This broken Tee fitting creates a vacuum leak. Purchase a new Tee fitting, disconnect the old part, then install the new one.

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How do i make it continue to run with no bucket so it does not fill and and so i don't have to empty it


Attach a length of garden hose no longer than 5 feet, to the threaded drain hose connection that was supplied with your unit, to carry water to the drain.
1. Remove the drain-hole cover on the back left side of your unit.
2. Connect a garden hose to the threaded drain hose connector.
3. Push hose connector tightly to the drain-hole on Rear Grille with the arrow on the tab pointing UP.
The hose attachment will accept a standard garden hose fitting.
Do not over tighten the hose when connecting it to the hose connector,
use a rubber washer and tighten by hand firmly without stripping the
plastic threads.
When being attached to hose connector drain hose connection,
do not bend or kink the hose. The hose should lie flat from the
dehumidifier to the drain.

Jul 04, 2011 | LG LHD45EL Dehumidifier

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How is the external tube for draining outside connected to the dehumidifier. Does the tube insert into the right angle nipple, then the threded end conected to a drain hose?


No. The tube inserts straight into the drain hole. Follow the 4 sets below.

1. Connect a garden hose to the threaded drain hose connector.
2. Remove the drain-hole cover.
3. Push hose connector tightly into the drain-hole on Rear Grille.
4. Press the hose down and make sure the "Arrow" on the tab is pointing upward.

NOTE:
The hose attachment will accept a standard garden hose fitting. Do not over tighten the hose when
connecting it to the hose connector, use a rubber washer and tighten by hand firmly without stripping the plastic threads. Be sure the hose lays flat and has no kinks, as it will not drain properly.

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I can use my Karcher K3 jet wash as long as i hold trigger down


Most pressure washers have ball lock type fittings on the hose connections. What happens is the little steel balls get a bit of corrosion and do not lock the male fitting properly with the female coupling. Load up the fitting with some Oil or WD 40. Then connect and disconnect the fitting several times to losen up the balls and springs. Should the spring in the coupling break you will get the exact symptom your describing.

If the OIL / WD 40 does not do the trick then you may have to change out the quick disconnect coupling.

Kelly

Apr 18, 2010 | Karcher PSI Electric Pressure Washer

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I can't connect the garden hose to the water inlet. I am using a size 5/8'' hose but it wont connect to the unit. Please help!


Karcher electric pressure washers typically are supplied fitted with the male half of a standard Hozelock connector. You need the female half secured to the end of your hose, and then they just click together.

May 16, 2009 | Karcher PSI Electric Pressure Washer

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Broken water inlet on Karcher 395 pressure washer


Had the same problem.Those hose inlet are very delicate.
I went to Home Depot,to the Garden Section in the hoses stand,and found a flexible connector for about $ 6.00 and I used it as a replacement for the broken hose inlet.
Good Luck!

Aug 16, 2008 | Dishwashers

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