Unit does not reach high pressure

Pressure washers usually will not draw soap on high pressure setting. Switch wand or set wand to lower setting. Pin hole leak in soap line can also cause problem.

Trevor,

The pulsating of the motor that you observe is occurring because the unloader valve is "cycling", over and over and over. This happens when the unloader can not trap the pressure down-line from it. Whether you have an external leak or not, your unloader is leaking internally.

On home-owner class pressure washers, the unloader valve is not a completely separate part -- as they are on commercial pressure washers. Rather, the "body" of this part is molded right into the "manifold head" of the pump. So if you are looking at the pump, the unloader is where the pressure hose hooks up (The hose is not really hooking up to the pump, but is hooking up to the outlet of the unloader valve).

What you need is an "unloader rebuild kit". To get this, if I were you, I'd find a Karcher dealer, who will look it up making any necessary cross-references etc. and come up with a part number for the kit. This kit will contain all the wearable pieces that go inside the unloader.

Also inquire with said Karcher dealer about an exploded representation of the unloader so you can see where everything goes (and how it comes apart and goes together). If such a dealer tells you he/she has no such thing -- that is likely not true. It is, however, true that these dealers may feel justified in not wanting to be "tasked" too much because they earn very little $margin$ on the sell of these parts. At any rate, you need this parts explosion and if a dealer is not willing to get you hooked up with it, go somewhere else! Also, these service sheets may be available online, but I have not been able to locate them (admittedly, my search has been cursory).

When you do this, be sure to wash out every little piece -- because we know there is damage and bits a pieces of the old wearables may be inside cavities and this could/would cause things to not work upon completion. Do this work in a well lit area and be sure your vision is as good as it can be. I generally wear reading (magnifying) glasses to be certain I can see all detail.

Good luck and if this is helpful to you I hope you'll take a sec to rate me. Thanks!
Don

You can download the manual here: http://www.farmprotractors.com/hdcmanuals/PW2200-03435.pdf

It is probably the same manual that came with the unit.

As far as pressure... hook up the water supply hose and turn on the water supply. Let the supply hose purge all of the air out. Then turn off the water and connect the high pressure hose. After that turn the water supply on again with the engine off and squeeze the wand trigger. Make sure all of the air is out of the high pressure hose. Then start the unit...
Once the engine has stabilized rapidly squeeze and let go of the wand trigger several times. Your exersizing the bypass / unloader valve spring. By this time you should have good pressure. If you have owned the unit less than 90 days and your sure you have a warranty issue use this link to contact the company:
http://www.homier.com/contacts

Contact Information:
Homier Distributing Company, Inc.
84 Commercial Road
Huntington, Indiana 46750
Hours of Operation:
M-F 8:00am - 5:00pm EST

I note they do NOT include a phone number on their contact page but do state empatically that warranty contact should be made via email [email protected]

You will also need a warranty form here:
http://www.homier.com/return-authorization-form.pdf

Some of these units have a sliding assy on the wand that slides toward the ouput nozzle for adding soap / chemicals. If the slide is not pulled back toward trhe wand and locked into place you will not have any pressure either.

It appears from reading the manual that this particular unhit had 2 different nozzles. One for chemicals and one for high pressure. Plese make sure you have the high pressure nozzle installed. The BLACK nozzle is for chemical use. (page 5 of manual link above)

The red, yellow or white nozzles are all for high pressure with different spray patterns.

This is about the best I can do for you Ron. Hope it was helpful.

Kelly

Go here: http://www.simoniz.ca/en/pressure_washers.html

check the non-return valves in the pump block. if these are damaged or dirty you pressure will be greatly reduced. they are located behind the 3 lage brass hexagonal caps.

I hope this helps

Nozzle is clogged. Clean out with small diameter wire.

Didn't the instructions say to make sure water was hooked up before starting? This is the reason for the warning.

i order a new part
thank you for your help.

Take the old one to a hardware store or homedepot and get a brass replacement

Pressure Washer Parts