I don’t have much pressure washer experience... pulled trigger many times for various periods and absolutely nothing ever happened.
as in zero water came out the wand?
with the engine running at full speed or at least reasonably above ~1000 rpm idle the pump is turning and with not pulling the trigger and having the hose connected and all that so no water is flowing, the pump should first build pressure into the high-pressure output hose up to the trigger of the wand, to whatever psi the pump is advertised at. I was kidding about the wand nozzle.
if it doesn't then either (a) you have a bad pump or (b) it is fraudulent marketing, you'll have to decide what is reasonable...
for example, I bought a HF predator 4400psi 4.2gpm pressure washer, their big one for ~$1000 which has gotten good reviews, and it does work well. however when I put a 0-6000 psi pressure guage on the output side of the pump to measure max pressure that the pump is making it maxes out around 3900 psi, far from the advertised 4400 psi. so like 88% ? is the pump bad in this case no. is changing the wand nozzle (when no water is flowing) going to help, maybe in an alternate universe.
but u say "absolutely nothing happens" when you pull your wand trigger... with the engine not running and the pump not turning simply pulling the trigger or if u were to not have the high-pressure hose connected on the pump output should be a decent flow of water like 50% of your kitchen sink faucet. same for coming out of the wand without a nozzle it should be a horse-piss stream with no pressure. If you don't get that then you don't have adequate input water flow to the pump and you will likely damage the pump when it does run at full speed and it starts sucking what isn't there and begins to run dry and overheat.
so before u run your pressure washer you should ALWAYS verify the water source you're using has an acceptable flow to meet the needs of the pump being used on the pressure washer, especially if it's some place other than your own where you are not absolutely sure and especially if it's coming from a well pump. if it's a 4gpm or higher pump it is good to make sure the source water flow is acceptable, like fill a 5 gal pail and time it if you otherwise can't recognize. If you are running off well water, be sure not to run your well dry and kill your well pump.
