Question about Northstar Pressure Washer 3000 PSI

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Pump loses pressure after you use it a while even when trigger is never lifted . i can start it up it runs good trigger pulled and then it loses pressure no cavatation

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Looks like you need a new diaphpragm in the pump unit

Posted on May 23, 2009

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1 Answer

When trigger is pulled pressure goes up and down as long as trigger is held


When you start the pressure washer, having the water from the faucet at full pressure, apply pressure to the triger gently....this should allow the system to release the pressure gradually and keep up.....when you pull the trigger full throttle, it can cause the jurking sensation in system. If this does not resolve the problem you may have a bad empeller pump and requires replacement. Do not allow the pressure washer to run for more than a couple of minutes without water flowing thru is as this will burn up the motor )empeller pump). Good luck

Feb 11, 2011 | Garden

2 Answers

Let go of wand trigger pressure will not come back


spill valve is stuck and needs to be cleaned and greased common problem....also check all connections for blockage in line

Jul 21, 2010 | Karcher 2500 PSI Pressure Washer

1 Answer

Too much pressure.


You need to keep the trigger pulled every time you start and you need to run the water for 3-5 minutes wide open before you start. Zero air should be in the line or this could cause it to **** out. You probably damaged the pump at this point.

Apr 27, 2010 | Dewalt DPH3100 Gas Pressure Washer

1 Answer

Gas engine will not start without pulling trigger on wand to relieve pressure-engine dies when letting off trigger


I am afraid that is how they work even electric ones wont start unless you squeeze the trigger ,once they are running you should be ablr to release the trigger , and then squeeze it again whilst running . if yours dies when you release the trgger while motor is running -----good chance you are working at too high pressure. but to start you have to release all the internal pressure

Aug 22, 2009 | Campbell Hausfeld 2000 Psi Gas Pressure...

1 Answer

Ex-Cell VR2500 Builds Pressure but Won't Spray


I have a similar problem and diagnosed it to be a problem with the gun. I spoke to a technician that services this pressure washer and he walked me through all the diagnostic steps. The pump is working because there is pressure being built up and the gun sort of works because you can get water out before the washer is started. The technician said that the mechanism inside the gun is either clogged or broken. I am going to Home Depot or Lowes to purchase a new gun and will try it tonight. Guns are only about $30-40. He said generic is fine as long as the thread matches and PSI is in range. Good luck!

Aug 09, 2009 | Karcher 2500 PSI Pressure Washer

1 Answer

Pressure washer hesitates, does not start. Unable


get someone to keep the trigger pulled while you try to start it , its probably got presure trapped between the trigger and the pump.

alternatively turn off the water to the pump, pull the trigger to release any pressure trapped.

start the engine , allow engine to warm up, increase revs on engine then turn on water, should be ok then. Unless you have a problem with the engine that is!

Jul 21, 2009 | Briggs & Stratton Garden

1 Answer

Pressure washer sputters and stalls when trigger is engaged


Hi k2times01
It is a always a good idea to clean out the gas tank and use new fuel, however, this sounds like an RPM problem. Try adjusting the RPM up a tad and see if it runs better when you load it. If the RPM isn't the problem, you may have to clean the carburetor thoroughly.

Jul 15, 2009 | Garden

1 Answer

Pressure washer stalls out when wand nozzle is released


common for not starting unless trigger engaged as you are turning the pump as well as engine creating pressure,as for stalling pump has unloader valve which is probably in need of grease(use good silicone grease)this allows water to ciculate when trigger released.

Apr 19, 2009 | Campbell Hausfeld Garden

1 Answer

Pressure is fine when first started ,if trigger released no Psi


Your uplift injector valve in the water pump is sticking. You need to remove this part. Lube the top o-ring only with a water proof grease. Reinstall this part. You will be up and running again.

You need to use needle nose vise grip tool to easily remove the valve. You need to grind down the vise grip tool to fit the opening where the valve is installed.

To prevent this problem from reoccuring use a pump guard additive.

Apr 05, 2009 | Karcher 2500 PSI Pressure Washer

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