Question about Cam Spray 25006HT 2500 PSI Cold Water Gas Trailer Mounted Pressure Washer with 6.5 HP Honda Engine

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Will not release pressure and dies

Having trouble keeping the pressure washer started. you have to hold the handle in on the nozzle in order to keep the pressure washer running. when you release the handle the pressure washer dies

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Rick Meckstroth

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Your unloader valve is not functioning. Take it apart and make sure it all the parts are able to move freely under the spring. You may need a new o-ring or two if you see damaged ones.

Posted on Jul 24, 2013


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I have a Honda GC160 motor on a powerwasher. The engine stalls when I release the power wand handle, but if i keep the handle squeezed, it works but the engine sounds like it is laboring.

replace the unloader of your pump....find the model of the PUMP ...not the washer itself...the pump and find a parts list and then purchase and replace the unloader. That will fix your problem. Good luck

Aug 15, 2017 | Honda Garden

1 Answer

Motor will start and run as long the high pressure valve on the nozzle handle is held open but when the nozzle valve is closed the motor will bog down and die.

Your pressure washer is equipped with a device called an "unloader valve". This valve allows the water to route into a by-pass loop when the trigger is not pulled. If you can locate a parts breakdown for your model (like in the owner's manual - hopefully), then you can locate the unloader valve and take it apart and with careful observation determine what has gone wrong with it. Most likely you will wind up ordering a kit that will have all the o-rings and etc that are part of the unloader (the wearable pieces). Just take your time and keep all the old pieces in order. You just want to be sure you can determine where the new pieces go.

If I were you, I would first contact a dealer for price/availability. But get the part # -- then you can shop around. Often its amazing how good prices can get on ebay, amazon, etc.

Good luck, and rate me if this is helpful to you. Thanks!

Mar 10, 2012 | Karcher G 2600 VH Gas Pressure Washer

1 Answer

Why wil the nozzle no longer stay in the handle ?it will not twist and lock

Probably the plastic handle is worn where the nozle fits and there is nothing to keep it locked.

Mar 23, 2011 | Karcher K2.26 Electric Power Washer

1 Answer

Engine runs great, when i turn the hose on it dies.if i hold the trigger and start engine it runs, as soon as i release trigger the engine dies

Make sure thre is no air lock in the system line. So first of all use a clean line to wash off and blow out any dirt in the spray gun.
make sure the engine is having good fuel and power it on to run and warm up . let it run over without any load on it . Now turn the hose on it and power it on slowing, do not stop but keep it running to power spray . The accumulated dirt might come off and make the run smooth after some time.

Sep 18, 2010 | Karcher 2500 PSI Pressure Washer

1 Answer

How do you change the nozzle? We borrowed this unit and can't figure it out.

On most pressure washers the nozzle is inserted into a quick connect. Simply grasp the outside of the housing holding the nozzle and pull back. The nozzle will come out. While holding the spring loaded connector back insert a new nozzle and release. In some case there is a slot and the quick connect must be orientated so the slot lines up with a pin. If the end looks like this, then it is a quick connect. Grasp it and pull back. ecae845.png

Apr 24, 2010 | Karcher 2500 PSI Pressure Washer

1 Answer

I have the Coleman powermate 2400 PSI pressure washer and on initial start it sprays and has great pressure. But once I release the spray handle it will not spray again, not even one drop of water. I have...

Sounds like the valve in the handle is sticking closed. May have a broken spring, or maybe a part is stuck..
I say take it apart, and the answer will present itself.. Play with it with nozzle out too... Maybe something is stuck after storing so long and will loosen up.. Fingers crossed

Oct 22, 2009 | Coleman Garden

1 Answer

Karcher G3050OH Pressure Washer Spill / Unloader Valve (Bypass)

You should put 'locktite' on the male thread and screw it in all the way and lock it there. That is how it works ,the spring keeps the valve at the bottom closed during high pressure operation. When the gun is released the part with the o-ring is forced down resulting in the valve opening and then the pressure is by-passed.Those dont normally give trouble. Look for a blocked nozzle or a restriction somewhere in your high pressure hose.

Sep 07, 2009 | Karcher 2500 PSI Pressure Washer

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