Karcher PSI Electric Pressure Washer "pulses trigger" Questions

My washer makes a loud pulsing noise when not being used,as soon as I pull the trigger it works fine. Once connected to water supply and the power is switched on, it makes a loud pulsing sound. As ...

pulses when trigger is released and has hardly any pressure. I have taken it apart and checked the release valve and o-ring both seem fine. When it pulses you can see the pressure is released into the

...pulses while you are squeezing the trigger, and there is water coming out of the jet, then most probably the jet is partially blocked. It may or may not be possible to clear it... If the machine ...

...trigger on the lance it is continually pulsating. Pressure seems OK in between pulses. you have a restriction in the nozzle end of the lance. clean with paper clip. if not you have some dirt in the ...

Karcher KB4040 pulsing when trigger closed and has lost about 50% of its power HI all, I have a Karcher KB4040 and its been a great tool for the last 7 years with occassional use. I lent it to my ...

...for no reason and it pulses. the water pressure is fine. your bypass valve that keeps pressure off the hose when the trigger isn't depressed is stuck open,and not letting the pump build ...

I have a Kew Hobby 80. The output from the lance is not constant but pulsates. Could be the input water pressure is not sufficient. There is a pressure valve inside the machine that will cut off the ...

why does my pressure surge Common problem across brands. When you spray water the drop in pressure triggers the motor to take the hose pressure ~ 30 psi and boost it to ~ 3000 psi. Water coats these ...

...pulses on and off without depressing the trigger on the wand. Other solutions here state that the problem is with a faulty Control Valve / Spill valve. I have taken the machine apart in an attempt to ...

a pulsing feeling when you trigger the wand, When you feel a pulsing from your pleasure washer you have a bad inlet or outlet check valve. Inspect and clean all check valves