This video shows the unloader valve in a cut away of a 2700 psi Homelite Pressure Washer. After watching this video you may be able to get your pressure washer to build pressure again.
Please note: I am not a mechanic and I do not work on these things for a living. I’ve only worked on one pressure washer in my life and this video is the result of that. After watching this video you should know more or the same about pressure washers as me. So I’ll apologize in advance if I don’t know the answer to any questions.