Having problems with your Karcher 2500 PSI Pressure Washer ?

I have the Karcher 2400 psi, 5.0 Honda engine. Starts fine, but when you pull the handle on the spray wand, the pump does not kick in and the water just continues to trickle out of the end of the wand at regular faucet pressure. Occasionally the "clutch" will kick in and you have full pressure, but if it does and I let off of the trigger then chances are that it won't kick in again. has been getting worse for several years.


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Repair Help & Product Troubleshooting for Karcher 2500 PSI Pressure Washer

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I have the Karcher 2400 psi, 5.0 Honda engine. Starts fine, but when you pull the handle on the spray wand, the pump does not kick in and the water just continues to trickle out of the end of the wand at regular faucet pressure. Occasionally the "clutch" will kick in and you have full pressure, but if it does and I let off of the trigger then chances are that it won't kick in again. has been getting worse for several years.


... Karcher 2500 PSI Pressure Washer

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 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...


... Karcher G 3050 OHR Gas Pressure Washer

Let go of wand trigger pressure will not come back


Spill valve is stuck and needs to be cleaned and greased common problem....also check all connections for blockage in line ... Karcher 2500 PSI Pressure Washer

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.


... Alfred Karcher Quick Connect Nozzles 2600 3100 Psi 5 Pack

I HAVE A BRAND NEW TROY-BUILT 2600PSI pressure washer. I have used it twice for about 1/2 hour each time. It worked perfectly. I tried to use it today with everything hooked up perfectly. The Honda engine started perfectly; how ever when I squeezed the wand trigger, the engine instantley died. I let the engine warm up and slowley pushed the choke in. I let it warm up for plenty of time; but everry time I squeezed the trigger it instantly quit- it even backfired once before dying. I changed the g


Sounds like the governor is stuck. My pressure washer speeds up when it has to pump. Don't know if yours uses vacuum to trigger governor or direct linkage. Good Luck. ... Psi Blue Max 2200 High Pressure Gas Power Washer

Turn water on then actuate wand trigger. Pressure washer leaks when wand trigger is actuated and has very low pressure/flow output. After releasing trigger the pressure cycles on - off at approx 1 second interval. I suspect that the plasstic oulet tube is leaking causing low pressure leak out of bottom when trigger is actuated and causes pressure switch to cycle when the trigger is released. Any Help? This pressure washer is approx 18 months old!


You gave a very close solution yourself for the problem. But other leakages can cause such symtoms.Forexample a leaking head or a leaking chemical inlet. These can be caused because the spill valve (pressure control valve) is stuck. When this valve s ... Karcher PSI Electric Pressure Washer

Lack of pressure after releasing the trigger on the wand


Hello awcockerill:This sounds like the bypass (unloader) valve is sticking. Here is a diagram of your machine's pump. On page 2. ... Karcher 2500 PSI Pressure Washer

When I go to a high pressure nozzel engine quits when I let go of the wand trigger. Found O-Ring on caberator bowl dammaged.


PRESSURE CONTROL WOUND DOWN TOO FAR CAUSING IT TO SPIKE....WHEN YUO RELEASE TRIGGER CAUSING OVER LOAD ON MOTOR WHICH STALLS.BACK OFF THE PRESSURE CONTROL(THE VALVE THE PRESSURE HOSE SCREWS ONTO)IT MAY TAKE AFEW TRIES TO GET IT RIGHT,YOU WILL SEE THE ... Pressure Washers

I have a craftsman 4.5hp quantum xte pressure washer 1800psi/4.5hp/2.0gpm mod 580.761800. I have to start the washer before I turn the water on and just today started with if I let go of the trigger on the wand the washer stalls. Can you advise as to what the problem is and how to solve? Thanks ****


The pressure relief valve(bypass) is most likely stuck or clogged. take the relief valve off and check for broken or jammed parts..there should be a bypass hose that goes around the pressure valve ... Briggs & Stratton Pressure Washers

Presure relief value not working when let off trigger on wand


Sounds exactly like the problem and the soluition you are looking for. ... Karcher 2500 PSI Pressure Washer

I have a Husky pressure washer with a Honda 2600psi engine. Problem is, no water will come from the pressure hose. I connected the water w/out the pressure hose and water flows thru strongly. I then connected the pressure hose w/out the wand and water flowed thru the hose fine. When I connect the wand and pull the trigger, nothing. I have replaced the wand and that was not the problem. Please help.


Check the quick disconnect to the wand these are spring operated and can get stuck ... Pressure Washers

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

Pull my pump first startsthe pressure is good as soon as i pull the trigger the pressure is gone as long as i hold trigger just faucet flow let go of it pressure builds up until i pull trgger , no pre


... Annovi Reverberi RMW2.5G25D

NO PRessure i have a Honda gcv160 5.5 dt2400cs CRANKS RUNS FINE AS LONG AS TRIGGER IS pulled to let water trough it has no pressure soon as you let go pressure starts building then it kills the motor will not run unless you hold handel


Hi It sounds to me like your unloader valve is stuck, this is the thing that is meant to move up and down when pressing the trigger.Please remove the unloader valve assembly and check for damage. If no damage is found then grease and lubricate this p ... Honda Pressure Washer PSI 3000

My karcher pressure washer is switching on and off when the wand is not being used. the pressure should hold but it appears to cut in and out every 2 secs. the machine works o.k. when pulling the wand trigger but i think the pressure is slightly reduced.


Unfortunately these little units have this problem commonly, 9 times out of 10 it will be the plastic head on the unit will be cracked and leaking slightly... it builds up pressure then leaks out and tries to build up the pressure again ... Karcher K2.26 Electric Power Washer

Karcher 620M.To obtain high pressure I have to Move pressure control on nozzle several times until pressure kicks on. As soon as I release trigger and then pull it again, I have same problem -- giggl


... Pressure Washers

Shuts off when high pressure wand is attached


Hi Brian. Welcome to FixYa I am Kelly. This sounds as if the bypass / unloader valve is stuck in place and the pump id dead heading causing the unit to shut off. (There is most likely some corrosion in the unloader / bypassy valve assy / housing. ... McCulloch FHH18A Electric Pressure Washer

I have a hoda pressure washer it stats right up and while i was cleanning the wood fence i let go of trigger during about 10 min, and the motor started dying i pulled the trigger and it pick right up again any ideal what would make that do that? but one time i let it quit and i couldn't get it started,i had to wait about 5 min. then it started back up again.thanks


A couple of things, what makes the engine change tone and revs is pressure, depending on the age, it may have excessive calcium build up in the pump, there may have also been a build up of crud or a wasps nest in the end of the hose when you connecte ... Devilbliss DeVILBISS Devap DVH2600 Gas-Powered Pressure Washer

My pressure washer doesn't start/work when I attach my wand to the trigger. It works fine when I take it off, but there is no pressure, just normal water coming out. I'm thinking I may need a replacement wand?


... McCulloch FH160G Pressure Washer

Cycles - pressurizes when trigger is pulled, then motor sets back to idle immediately as if trigger is let go, but is still engaged. Pressure and idling happens within 2 seconds, continously cycling


A lot of commercial and industrial grade pressure washers especially have a safety feature that will either shut down or will return the motor to idle if you do not have an adequate supply of water to the pump to protect the plungers and valves from ... Coleman Pressure Washers

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

Karcher K 3.68M Electric Pressure Washer. Wand trigger Locks Up.


Sounds like the pressure valve is broken thats why you cant depress the trigger , the valve is on the pump , i would suggest taking it to a repair shop as they are fiddly things to fix ... Karcher PSI Electric Pressure Washer

No high pressure. has been a consistant problem for a while. Was able to get high pressure to "kick-in" before by removing nozzle, squeezing trigger to "prime" high pressure, then quickly put nozzle back in then it would work. now it doesn't work at all.


See this link to fix the problem ... Honda Karcher G2400HH-R Pressure Washer

NO PRESSURE Hi, I have a generac 2500psi pressure washer. But it has no pressure. It does not sound like the pump motor kicking in when i pull the trigger. Any input helpful.Thanks Steve


Check the coupling or the belt between the engine and pump. unsure which this washer uses. the pump may also have failed, usually it is the coupling or belt broken or slipping ... Briggs & Stratton Pressure Washers
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