2 ways to interperate that, imo. I would say the pump is under load when you are not pulling the trigger.Hey all.
I've got a pressure washer that surges majorly with no load. Once I pull the trigger, it's fine.
It's got a GCV190 N5AV NH1.
Is this possibly normal? If not, any ideas?
Thanks!
It has been doing this since new (it was a refurb). Do you mean the unloader valve? I replaced it last year for other reasons and just checked it again. It seems to be moving freely. There's never been any change.If it's been doing this since new, I think it's the pressure relief valve bypassing when it's not spraying.
Pressure washers must have a way of bleeding off pressure when the engine is running but the wand isn't spraying. It will depend upon the pressure difference between 'closed' and 'open' on the bypass valve how much the engine surges. It's not hurting anything; mine has been that way since new.It has been doing this since new (it was a refurb). Do you mean the unloader valve? I replaced it last year for other reasons and just checked it again. It seems to be moving freely. There's never been any change.
Thanks.