I set up washer as required, turned on pump, pulled trigger with no action. Recycled switch with no luck. With pump power on, I disconnected the water coupler and the pump came on. I coupled hose up and pump immediately stopped again. Can anyone help please????
Http://www.ppe-pressure-washer-parts.com/campbell-hausfeld-pw138000-pressure-washer-parts
Hope this helps. I have the same problem. It's not the switch but the mechanism that slides inside the switch, which activates the switch to go on and off. I fnally found it so hopefully they have the part in stock. It's not a clogged wand trust me I have torn it completley apart and found out it is the mechanism in the switch is plastic and breaks.
The switch is at the bottom of the motor, yes the motor not the plastic housing. You will have to tear the whole thing completely apar, and pull the motor out. It's white with a black plastic nut (That's what mine looks like). And a wire harness attached to it. Don't fret you can do it. The mechanism inside the white switch housing, I believe is called the uploader needs to come out. remove Black Plastic Nut, and Ta Da.
It should have 2 small springs around the mechanism that turns the switch on or off. My springs were rusted also.
gospelgearin 34 seconds ago Have same unit with similar problem. Take wand apart and clean valve. Then take motor and pump out of case. It's held in by two plastic holders. Locate micro switch on side of pump,it's a white plastic box with wire leads going to it. It's basically an on/off switch. Make sure plunger inside it goes in and out as you operate the wand. If the pump stops and doesn't restart get a small screwdriver and push in the switch, the plunger isn't pulling it in all the way. Provided the off/on switch tests good you can solve the travel problem by putting a small o ring on the plunger rod. It worked for me
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It sounds as if you have a clogged wand. The same thing happened to me. If the tip of the wand (it has a very small nozzle) gets clogged with calcium or anything like that, the pump will pressurize the water, and then turn off (like it's designed to. -- it's only supposed to pump when the trigger is pulled). Because the water is not coming out (and relieving the pressure) the pump will never turn on. If you remove the wand from the pressure hose, you should be able to turn the pump on and see the water come out of the hose. If so, then you know the wand is clogged. Get a long, thin piece of wire and run it through the end of the wand toward the handle a few times, and then try to blow it out with compressed air. Then hook it up and see if it works. Hope this helps!
Pressure switch
I have the same problem and can't find the switch
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