Question about Dewalt DPH3100 Gas Pressure Washer

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Too much pressure.

After starting the pressure washer if I don't keep the trigger pulled the engine will stop. Also if the engine doesn't start on the first pull I have to pull the trigger to release the pressure so that I can pull the rope again.

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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.

Posted on May 27, 2010

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Posted on Jan 02, 2017

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1 Answer

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1 Answer

Pull rope on troybuilt pw wont pull out or pulls hard when trying to start it, i pulled plug and it pulls fine, put it back in and it pulls hard again if at all, can you help me out?


On some pressure washers the engine will be hard to pull start if there is pressure in the hose. Release the pressure in the hose by squeezing the wand trigger, then try starting the engine. Also If you had it running and then stopped it, you need to release the hose pressure again to have an easy time of pull starting it. This is what I have to do with mine once the pump is primed and before starting it up. I hope it's as simple as this. If not it could be an engine problem of some sort.

Hope this helps. :)

Aug 19, 2016 | Garden

1 Answer

My Karcher 530M runs ok until I release the trigger, then it will not start again unless I switch and allow the water to run through for about 15 secs before switching on again


Hi Cliff:
My experience is that the pump pressures prevent the engine from starting, so we hold the trigger while starting.
My brother has cut a wedge of wood that he uses to jam the trigger open to bypass the problem. It can get a bit wild if the wand is not secured when the unit is started..

Aug 10, 2016 | Karcher Garden

1 Answer

Won't stay running


Pressure washer when you first try to start them that stop underload. We had the same type of problem with 11 hp Honda if you hold the trigger open the motor will be under less load we found by running the motor for about a minute it would work normally. Remember to make sure the water hose is turned on pull the trigger on, until water is coming out of the wand , now try and start the motor but also hold the trigger open, now you will not be building maximum pressure, after about a minute release the trigger and see if it keeps running.

Feb 19, 2011 | Briggs & Stratton 2200 PSI Gas Pressure...

1 Answer

The pull start appears to be very difficult to pull......it feels like the motor doesn't want to turn / spin. Almost like when a car's engine freezes......no turning over...still difficult to pull start. ...


Hi, W/D here.

Try pulling on the starting cord while you are holding down on the trigger of the wand. A common problem with pressure washers is that the by-pass valve sticks, keeping the machine from unloading when you are starting it. Holding the trigger down works as a substitute for the unloader. Try it and re-post if this doesn't work for you.
Best regards, --W/D--
Please feel free to rate this solution. Thanks.

Feb 05, 2011 | Garden

1 Answer

New Troy-Bilt 3000 psi - Very Hard to Hot Start


When you run the unit and shut if off, release the pressure from the spray wand before trying to restart the engine. This built up pressure will cause it to be very hard to start as you have found out. If it does not start on the second pull release the pressure again. Another option is do do what I did on mine. I simply put a pull tie on the handle so I can pull the trigger back and use the pull tie to hold the trigger open. Make sure if you do this, that you remove the high pressure orifice from the end of the wand before attempting to start the engine. Otherwise the pressure will come on abruptly and could injure you or do property damage.

Apr 25, 2010 | Briggs & Stratton Prosumer 20324 Gas...

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 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

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