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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
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! Don
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.
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.
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
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.