Not building water pressure when starts sometimes it fluctuate its stats run when squeeze the trigger it the pressure cuts release the trigger it builds preasure
SOURCE: pressure washer won't build pressure
The problem sounds like its in the handle.. trigger mechinism
SOURCE: I have a Honda 3500 pressure washer. The motor
You need to start the unit and let it run for few minutes to get worm, make sure the water is fully open and the unit is fully cleaned. Push on the trigger on and off for few times not letting the unit shutdown, then start increasing the fuel mixture ¼ turn and push on the trigger again and see…this could be that the unit need service or the governor springs getting week if you got one on your unit…let me know how that work for you and please do not forget to rate my service so we can improve on it with your help. God bless
Testimonial: "The problem was the governor spring. Thanks"
SOURCE: NO PRessure
Hi It sounds to me like your unloader valve is stuck, this is the thing that is meant to move up and down when pressing the trigger.Please remove the unloader valve assembly and check for damage. If no damage is found then grease and lubricate this part and replace and this should work ok again.
SOURCE: will not build pressure
I'm assuming the nozzle is in place in the wand. Then either the pressure regulator is backed all the way out or the pump has failed. If you do mechanical work, you could rebuild it if it isn't damaged. You will need the information for the pump (not the motor)
Testimonial: "The answer to my problem was right on. There was a problem with the pump and it was rebuildable. It did take some mechanical skill and experience."
SOURCE: My pressure washer won't stay running when I
The pressure relief valve must be stuck. That is the part with the black knob were you adjust pressure. If it can't "unload" so tghe wagter has no where to ok, and then the pump will stall. You may be able to disassemble valve, soak in vinager or mild acid, rinse well and reassemble
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