Having problems with your Karcher 2500 PSI Pressure Washer ?

Karcher pressure washer k3.86 just keep running when you let go the trigger


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Repair Help & Product Troubleshooting for Karcher 2500 PSI Pressure Washer

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Karcher pressure washer k3.86 just keep running when you let go the trigger


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Karcher 3100 pressure washer, motor runs fine but when I squeeze the trigger on handle, high pressure pump won't come on unless I remove tip and water is coming out of wand without restriction. Help anyone have any ideas? It did come on once but when I let go of trigger it wouldn't come back on.


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I have a karcher 4.6 pressure washer that developed the usual fault.... drop in pressure and leaking from the cylinder head. I have replaced the cylinder head and the attached control chamber. The pressure is now good again and the leak is fixed. Unfortunately now when the trigger on the lance is released the the machine does not switch off automatically. I have bled the machine by letting water run through it


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I have a karcher 3.80 md electric pressure washer that keeps running when not in use and the pressure is low. Any help please?


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I have had 3 Karcher pressure washers all experience the same problem and so have two of my neighbors. Our area has very hard water and it causes problems with the washer not bringing up the pressure when the trigger is pulled (or surges up and down) and the nozzles clogging, etc. The service repair facilities cannot tell me how to prevent this. Many attempts to contact Karcher for advice have been ignored. I have been thinking that perhaps running the engine for a few seconds with no hoses a


If your water is that hard (and it appears it is) WD40 will NOT solve the problem. You should look into a water softener. However, chances are that a small, inexpensive model will not have the flow capacity required for a pressure washer. You'll like ... Karcher K2.26 Electric Power Washer

We have a Karcher G2500VH pressure washer. If you start the engine with the trigger pulled on the spray wand it will run at full pressure until you release the trigger. after that, when you pull the trigger it will not have any more pressure than the water hose feeding it. Does it have an internal unloader valve? What is the part number?


Hi, Karcher calls the unloader valve a spill valve, this is a link to a full drawing/parts listing , and your fault description might well be a sticking /seized unloader(spill ) valve hope this helps ... Karcher 2500 PSI Pressure Washer

I have a 5HP Honda engine installed on a Excell pressure washer. While the engine readily starts, it will not continue to run unless I keep the choke setting nearly completely closed. When I activate the pressure gun, it seems to generate adequate pressure, however, when the trigger is released, the engine continues to run at the same rpm instead of the normal variable rpm that most engines operate at during idling periods. The engine will always cease running when I push the choke rod all the w


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I have a Craftsman power washer model 580 752020. When I start it up, turn on the switch the electric motor runs fine until I either close the trigger to the spray nozzle or press the trigger for power spray. The electric motor just shuts down, if I take my finger off the pressure and let the water run with no presssure the motor runs fine. My question is this. Is the capasitator on the electric motor the probable cause and is there a way to check out the capasitator to see if it is malfuncti


I doubt that it has anything to do with the capacitor on the motor. i think you are having a problem with the actual Motor Drive circuitry. What is happening is when you close the switch, this tells the Motor to "Ramp Up" to pump the water out, what ... Craftsman Pressure Washers

Karcher pressure washer keeps running when water stops


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Dewalt dpd3300 pressure washer - runs for 2 minutes, when pressure builds it shuts down. It i keep the trigger on the wand depressed it runs fine...


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I have a troybilt pressure washer when i crank it up it builds pressure when i engange the pressure it takes about 5 seconds and pressure goes away if i let off the trigger it will build pressure again it only has about 20 hours of use on it (i did run a acid solution through it for my driveway wonder if that ate up a seal)


Unloader valve is the most likely suspect here.\015\012Remove and clean with penetrating oil then reinstall.\015\012\015\012Also add some LIGHT oil into your supply hose via a small funnel. 3-in-1 household oil or power steer ... Pressure Washers

MSV3024 pressure washer backfired after 2 hours of continuous use, then died. i was able to restart it but pulling the trigger kills the engine. i was able to pull the trigger rapidly and keep it running but holding the trigger down killed it again. now it won't restart. can it overheat? it has a full tank of gas.


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If while pressure washing I let off the wand trigger it looses pressure and I have to turn of the washer motor and wait for the pressure to return.(seems like some kind of vapor lock problem)When the pressure returns I hold the trigger and restart the washer. If I let off the trigger we go through the same process again. this is a g3050


Hi and welcome to FixYa, I am Kelly. \015\012 This is most often caused by the bypass / un-loader valve located on the high pressure output side of the pump. The valve will either have a stem type valve with a knurle ... Karcher 2500 PSI Pressure Washer

I have a Husky HU80722 pressure washer 2600 PSI with a 160 CU IN engine. It runs great but when I pull the trigger the water does not come out under pressure. Please let me know what I need to do.


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I have a Briggs & Stratton gas power washer. This is the 1st time this year that I have used it. I put in fresh gas, hooked up the water supply. The engine started and then quickly stopped. I had to release the water pressure in the hose before I could pull start the engine. The only way to keep the engine running is to hold down the spray nozzle trigger. Once that is released the pressure in the hose builds up and the engine stops.


Sounds like the unloader is not working correctly. Try replacing it and see what happens. ... Briggs & Stratton Prosumer 20324 Gas Pressure Washer

Hello there.My Karcher pressure washer motor constantly runs with no pressure coming out of trigger gun.I have tried another gun with the same result.The motor should stop/start when you press gun.The model is a 350M plus VPS. Could you please help.thanks


The valve that admits more water to be compressed is stuck. It is likely the O-Rings on it need replacing. No water to the pump, no pressure!\015\012\015\012The motor will stop when pressure is up to the designed pressure. ... Karcher Pressure Washers

Honda 5.5 hp pressure washer. After starting and using I let go of trigger and it keeps trying to build pressure until it dies.


Unloader failure replace the unloader ... Pressure Washers

Karcher 3.86M Electric pressure washer. Plugged it into outlet. Unit started running. turned it to off position. Attached hose. Turned on water valve. Turned on switch. Squeezed trigger. Nothing happened. Will not run. Ciruit breaker was reset.


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I have a generac 2200 psi pressure washer. It starts and runs fine as long as I have the trigger pulled to spray water. When i let off the trigger it kills the engine. What could this be and how can I fix it? Model number is 01040-2


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I have same problem with Chicago Electric # 47761 electric pressure washer as Aug 10 2010 writer had w/ Karcher 2500. Runs briefly then stops. Pressure is trapped in hose. I cleaned hose disassembled & greased valve in handle. No improvement. Problem appears to be premature wear of trigger cam in handle - both are plastic. Valve body is rigid nylon. Any thoughts??


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I have a HD 2701 DR pressure washer that starts and runs fine and usually works fine the "first" time but if you let go of the trigger and then try to use it again you just get a trickle out of the end of the wand. Usually if you hold the thing open for a while it will kick in (sometimes it takes forever...). Any ideas? It sounds like some of the "unloader valve" problems are similar but I do not see an "unloader valve" in the parts lists for the 2701...


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Engine runs,no water when trigger pressed. - Karcher G2650HHR Gas Pressure Washer


Where the hoses attach to in the pump is a valve along with another valve inside of it. Remove both valves and clean and relube with Vaseline or equivalent. The inner valve will be the toughest one to remove and that its why it does not work if stuck ... Karcher G2650HHR Gas Pressure Washer

My karcher 2.54 every time i switch on it cuts out the pressure washer seen to be working ok water running ok but when i connect the trigger gun and switch it on the power cuts out


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Karcher 550m has lost alot of its pressure,Why ,it keeps running when turned on, without pulling the trigger


Dear emmettbrickw,\015\012Many of the models of Karcher machines, have a valve that under pressure...will compress and at the same time it will let water by-pass and circulating inside the head. As this valve compresses it also puts off a micro ... Karcher Pressure Washers

Karcher k2.35 pressure washer, motor is running, water is flowing, but when you press the trigger only a fine jet of water comes out.


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