I have a Generac power washer 2000psi, that's about 4 years old and has worked flawlessly until this year. The unit will not build up any pressure. I took off the wand and it pumps out the same amount of pressure, with the washer running or with it off. I took off the bottom of the pump unit and the ceramic pistons go up and down when I pull the rope for the engine. The rubber washers look new, I used this unit maybe 10 times. I also checked for blockage and none was found. I did contact the manufacture, but all they did was refer me to a service company. Anyone have any experience with a problem like? I would like to fix it myself if I could. Like I said it appears to be working like it's supposed to be.
Thanks for your time TheBoz