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Re: karcher 2400 Psi Pressure Washer No gain of pressure
Remove the hose from the machine. Check that water is flowing. and there is no corrosion reducing the opening. If that is OK then it is the internal seals and pressure vallve on the pressure unit Cost to have it fixed by Karcher is $200
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Inside the nozzel, where the tip locks in, there is a groove for an o-ring. If that o-ring is missing, water will leak around the tip as you describe. Sometimes when the tip isn't fully seated in the nozzel and you pull the trigger, the tip goes flying out. The o-ring will fly out also. Most people find the tip but never see the o-ring. The o-ring is usually carried by any company or store that carries pressure washers.
try cleaning them out with a piece of wire, the twist ties you get with freezer bags seem to work well for me, just skin down the paper from them. as well if you disconnect the hose from the nozzels and see if the pressure is there without the nozzel. if not much pressure u will need a new pump
You have to take off the top of the power nozzel that has the light lense. There are two pressure locks,one on each side. Use a screw driver to release. You will see the screws.Take the two screws out and on some models, there are two pressure locks on the back of the nozzel. Again use the screw driver to release. The top should come right off.Hope this helps.
Did you get new wands with the power nozzel? The wires that power the nozzel run through the wands from the hose to the nozzel.The connectors at the end of the wires are fomous for getting too big and making a bad connection. This causes the on/off problem. This will only get worse if you continued use. The wires in the hose handle, the hose and the power nozzel elbow can all be changed out. You will not have to replace the hose handle or the wands unless the plactic has been burned. (A loose electrical connection causes heat). Take your hose,wands and nozzel to the shop for repair. Don't let the sales/service manager tell you that you need new parts until you can see the parts are bad. I think they saw you comming when they sold you the new nozzel.(just my opinion)