Question about Dewalt 3800 PSI Pressure Washer

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I have a Dewalt 3100 psi pressure washer which is hardly used since I bought it almost 2 years ago. It cannot start. It is full of gas and I have gone thru all the basic steps prior to pulling to start. it does not seems it wants to start.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 942 Answers

SOURCE: My DeWalt Gas Pressure Washer Model DPD3100 is

Hi

Just try the following steps

  • Inspect the water supply connections
  • Inspect the drain hose
  • Inspect the water pump
  • Inspect outer tub for cracks or corrosion
  • Inspect the tub seal
  • Inspect the tub bearing
Good luck

Regards

PCmania

Posted on Jul 05, 2009

nova2nv
  • 197 Answers

SOURCE: cannot get it to uptake the bleach for spraying

On most pressure washers you wont be able to draw soap/bleach into pump unless you are spraying on low pressure.There is a valve on the inside of inlet hose fitting that closes when high back pressure is sensed.Would it draw bleach into hose when wand tip is removed?

Posted on Nov 21, 2009

puertobori
  • 7733 Answers

SOURCE: Dewalt 3800 PSI operates great

When you pull to start squeeze the water hose tigger until start.

Posted on Oct 03, 2010

LandaNW
  • 45 Answers

SOURCE: Hi, I have a Dewalt pressure

There are two common issues that will cause what you are describing. What you need to do is run the machine until it dies as you are describing. Then pull the spark plug and check for spark. If you do not have spark you have a failing stater. It is very common for this problem to only show itself after the machine warms up. If you find that you do still have spark try removing the gas cap and restarting. It is also common for a vacuum lock to occur due to the seal on the gas tank cap. In most cases one of these will be your issue. If not feel free to contact me at 800.247.8103 and I will help you to troubleshoot the issue further.

Sincerely,
Aron Kerr
Landa Northwest
www.landanw.com

Posted on Mar 10, 2011

mxc2
  • 146 Answers

SOURCE: Hi, My Dewalt 3100 pressure

The Dewalt 3100 came with 2 different pumps. The Blue Cat pump and the oil free pump that was made by DeWalt.
You may just have a bad Thermal relief Valve on the unit.

You can find the parts diagram at www.allpartsinc.com

Posted on Oct 01, 2011

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2 Answers

I HAVE A RYOBI PRESSURE WASHER 3100 PSI WITH HONDA ENGINE PURCHASED FROM HOMEDEPOT USED IT 2 WEEKS AGO RAN PERFECT TRYED USING YESTERDAY AND I HAVE NO PRESSURE THE UNIT IS ONLY 10 MONTHS OLD ANY SUGGE


  • I have the exact same pressure washer..bought 10 months ago from Home Depot with the same problem..no pressure. Have you had any luck finding out what the issue is?

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Why won't the cleaning solution come out of the hose for Husqvarna 3100 PSI 2.8 GPM Gas Pressure Washer 020490?


Most people I run into with this problem are trying to get the cleaning solution to work with one of the high pressure tips, usually red, green, white or yellow. The only way to make the machine use the cleaning solution is with the low pressure, soap tip, usually black. With the high pressure tips there is too much back pressure for the solution to be picked up and mixed into the water stream.

Apr 28, 2014 | Husqvarna 3100 PSI 2.8 GPM Gas Pressure...

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Hi, My Dewalt 3100 pressure washer pump wash leaking water from a check valve or overflow plug Do you know whats wrong?


The Dewalt 3100 came with 2 different pumps. The Blue Cat pump and the oil free pump that was made by DeWalt.
You may just have a bad Thermal relief Valve on the unit.

You can find the parts diagram at www.allpartsinc.com

Sep 08, 2011 | Dewalt DPH3100 Gas Pressure Washer

1 Answer

Hi, I have a Dewalt pressure washer 3100 psi. I want to know why the pressure washer works okay for 1 hour then it stop working completely. the oil is fine, the spark plugs are okay, and when I tried to...


There are two common issues that will cause what you are describing. What you need to do is run the machine until it dies as you are describing. Then pull the spark plug and check for spark. If you do not have spark you have a failing stater. It is very common for this problem to only show itself after the machine warms up. If you find that you do still have spark try removing the gas cap and restarting. It is also common for a vacuum lock to occur due to the seal on the gas tank cap. In most cases one of these will be your issue. If not feel free to contact me at 800.247.8103 and I will help you to troubleshoot the issue further.

Sincerely,
Aron Kerr
Landa Northwest
www.landanw.com

Mar 08, 2011 | Dewalt DPH3100 Gas Pressure Washer

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Got a Dewalt 3800 PSI Pressure Washer with 4.0 GPM with a Honda GX 390 gas engine. Tipped it up to roll it out to my truck and got a big puddle of water with what looked like Pump oil in the puddle. Can...


Could very well be. Did you check the oil level and condition of oil? If its too full or if its light brown milky, then water has entered crankcase. Pressure washer pumps cannot stand to ever let run dry. Even a little. Also excessive idling will overheat pump if it doesn't have a thermostatic relief valve that allows some more cool water to enter pump.If it doesn't have one add one. Find your PUMP mfg and model number. IF it's pumping good now and no leaks, quick replacing the seals will save big future repairs. www.pressure-washer-parts.com has lots of info on many pump manufactures. Or get some seals from dewalt.

Aug 11, 2010 | Dewalt 3800 PSI Pressure Washer

1 Answer

Cannot get it to uptake the bleach for spraying Dewalt pressure washer 3100 psi


On most pressure washers you wont be able to draw soap/bleach into pump unless you are spraying on low pressure.There is a valve on the inside of inlet hose fitting that closes when high back pressure is sensed.Would it draw bleach into hose when wand tip is removed?

Nov 21, 2009 | Dewalt Garden

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