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Dewalt DXPW3025 shutting off - Dewalt 3800 PSI Pressure Washer

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Dxpw3025 motor drops rpm when triggers pulled


Look at the size of your spray nozzle, it may be too small causing excessive back pressure and thus excessive strain on your engine. Your nozzle should be a 3.0. If you are using the 25 degree nozzle for example, it should say 2503 on the side of the nozzle.

Nov 26, 2016 | Dewalt Pressure Washer - DXPW3025

1 Answer

How do you find manufacture date


there should be a metal plate with numbers. or numbers stamped on the engine cover. if you take these numbers to a parts store they can cross reference the and tell you what you need to know. that is how i find out. good luck

Dec 30, 2015 | Dewalt Pressure Washer - DXPW3025

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The machine shuts off when you let off the trigger. Seems like pressure must build up and it shuts off.


Your unloader bypass system has failed. Several pumps were used on this model, see link for parts breakdowns.

Sep 28, 2014 | Dewalt Pressure Washer - DXPW3025

1 Answer

How do you adjust the pressure?


get larger nozzles, if you are using size 4 nozzles now ( looks right for 3 gpm at 2500 psi) then you would use size 4.5 for 2000 psi, size 5 for 1600 psi etc
Chart here https://www.stens.com/assets/media/pdf/2012_Nozzle_Size_Reference_Guide.pdf

Sep 07, 2014 | Dewalt Pressure Washer - DXPW3025

1 Answer

Pump runs but water keeps going out blow by will not build pressure


The seal inside the unloader has gone. It is normally an O ring and should be able to be replaced or get a new unloader.

Mar 12, 2014 | Dewalt Pressure Washer - DXPW3025

1 Answer

Checking warranty


how can we help you, what is the problem with it?

Oct 16, 2013 | Dewalt DXPW3025 3000 PSI Direct Drive...

1 Answer

Dewalt Pressure washer keeps shutting off for no reason. plenty of gas and oil, water running to it. starts fine and as soon as I start spraying it shuts down.


Had a similar issue with my dewalt 4200 pw. Unit starting shutting off after spraying for about 5 min. Then difficult to restart, but would start again eventually only to shut down a few min later. Had new engine oil, new pump oil, good gas. I changed the spark plug and unit runs great again!

Aug 08, 2010 | Dewalt 3800 PSI Pressure Washer

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