Question about Karcher K2.26 Electric Power Washer

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Water leaking I have no pressure when the machine is switched on and also water spilling out bottom

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Cracked casing or blown gasket due to freezing and not draining the pump.

Posted on Apr 23, 2014

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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Basket does not stop far enoght back water spills over top when filling


see the causes and fix it. use the common sense. God bless you
If your washer is overfilling, check these: Water-inlet valve Water-level switch Water-inlet valve A defect in the water-inlet valve may mean that it's no longer able to shut off completely when the electricity has been turned off to it. If this occurs, the valve may leak and drip water into the clothes tub. In time, the water may accumulate substantially. If this happens, you need to replace the valve. Water-level switch A defect--or an obstruction--in the water-level switch may mean that it can't tell the water to shut off. So the machine overflows. This switch senses the water level in the clothes tub. It's usually a diaphragm device with a small, clear tube attached between the switch and the bottom of the washer's outer tub. As the water level in the tub increases, the pressure on the air in the tube increases. When the pressure reaches a certain level, it activates the switch, shuts off the water, and signals the timer to begin the agitate cycle. You can either clear any obstruction in the tube or replace the water-level switch.
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Sep 22, 2012 | Washing Machines

1 Answer

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...


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 stucks it will leave a micro switch ON. So the machine keeps working with the gun closed. This will in turn creat internal pressure and damages the head, valves and chemical non-return and even damage outlet hose. So besides fixing the leakages you must check and service the spill valve. I often replace the spill valve. One must also checks if the micro switch is faulty. Now very important that what you mentioned that the machine cycles at one minute intervals, with trigger closed...this is most probably always the spill valve fault. If you open machine you see a place where there is a wire..this belongs to the micro switch...under you find the spill valve. Intake and suction valves may now also have a fault. Also there are systems with non-return valves at the machine outlet. You have to tackle by elimination. Fix the leakage..then tackle spill valve and micro switch.
Fulltech.

Jul 03, 2010 | Karcher PSI Electric Pressure Washer

1 Answer

Water won't come into the dishwasher


The anti flood system could have been triggered due to a water leak or spill at the bottom of the washer, This device (polysireene float and micro switch) when triggered shuts off the inlet water and puts the washer in pump out mode only. Use a torch and check if a small amout of water is causing the float to trigger the microswitch attached to the float. If a small amount of water leak / spill is causing this you need to first fix the spill / leak. before you try again.

Apr 21, 2010 | Crosley 24 in. CDU600 Built-in Dishwasher

1 Answer

Water leaking out of bottom of machine


either tub has leak or bottom seal is bad. you may have to go in from behind washer. View here for more info and don't hesistate to ask more questions:

http://www.howstuffworks.com/search.php?terms=washer+repair

Oct 01, 2009 | Hotpoint Ultima WD72 Front Load...

1 Answer

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


Dear emmettbrickw,
Many 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 switch. This all happens when the gun is closed. This valve is called a SPILL VALVE or sometimes a CONTROL VALVE. Now for various reasons (example you store the machine with pressure in the system)....the seals of this Spill Valve get damaged. So you can have a problem in which the machine stays off....or a problem like yours...the machine continues running with gun closed. Your problem with gun closed...the spill Valve is not compressing and therefore not stoping the machine. At first when this happened it caused a fault also in your machine's valves. The gun was closed...pressure grew high...and this burst the intake valves for sure.
So my advice is that the spill valve must be renewed and also the intake valves. You must also check the Miro-Switch to see if it got stuck in the on position. If micro-switch is faulty, this also must be renewed. The Spill Valve is often located where you find a micro-switch holder with an electrical wire coming out. When you find this micro-switch...detach it from machine...then put on machine for a few minutes and press micro switch to see if machine stops. If machine stops...then at least Miro-Switch is OK. Always do these tests with electrical protective clothing, Shoes and Gloves!! Now if your machine does not have a micro-switch...then you have a spill valve which only by-passes water. This type of spill valve also needs checking and if need be renewed.
In a few simple words, the spill valve does all the work after one has opened or closed the gun. Sometimes by changing the spill valve only....the pressure will get back to normal. If not ...suction and delivery valves must be checked.
Regards,
Fulltech.

Jul 21, 2009 | Karcher Garden

2 Answers

Electric Karcher pressure washer surging when turned on


Dear firenutt681,
One simple thing you can do, is to check for leaks. Check if hose at machine is leaking. Check gun if it is leaking. You can also check if water still comes out of lance nozzel. These leaks however so small, will cause the machine to surge.
Another reason is due to a faulty SPILL VALVE. This spill valve( often called CONTROL VALVE) will contract when the gun is closed. When it contracts under the enclosed pressure it will switch off the machine by means of a Micro Switch. Now if this Spill valve is faulty it will loose its compression under pressure and puts on the micro switch again. This can be seen once in a while or more frequent, as in your case. I sometimes do service Spill Valves, but mostly I replace them with a new one. I do not know the model number of your machine, but normally you have to open the cover and you should spot the spill valve on the head. Most probably you see a thick wire or a cap containing the micro swith. If you find the micro switch, you have found the spill valve. Sometimes it is a bit hard to pull out the spill valve. Myself, in various Karcher models I remove the spill valve by trying to feed water and put on a bit the machine. In this way the spill valve will be spitted out.
Another reason which makes your machine surge, is leakage from from the detergent inlet.
If you do not see no leakages at all....then for sure it is the SPILL VALVE.
If you cannot do this job yourself or you do not find spare parts...you can continue using the machine as it is...but before closing the gun...switch off the electricity. I only recommend this in an emergency. You do this so that you do not leave the machine surging. This surge will for sure damage the electric motor and the capacitor (assuming it is single phase).
Regards,
Fulltech.

May 30, 2009 | Karcher K2.26 Electric Power Washer

1 Answer

Pressure washer lacks pressure initially?


Dear allbusiness9,
This problem is most probably due to a faulty Spill Valve( also called Control Valve). When the gun is released the spill valve is compressed and it either closes a micro switch or just opens from the bottom and keeps the water circulating. All spill valves keep the water circulating from the bottom part. Now when the gun is pulled (opened)...the spill valve extends and closes the bottom part, and thus water goes out of the nozzel. When you work with no nozzel, there is enough water flow to close the bottom part of the spill valve. So when the nozzel is placed back there is no chance that the bottom part leaks water. When the gun is started with the nozzel....the bottom part of a FAULTY spill valve,..will colapse and pressure drops. So to fix the fault you must change the Spill Valve. In some occasions, I also found that suction valves give this problem. A faulty sucktion valve will colapse under high pressure, and lets water pass the other way round.
But in my opinion and experience, your problem is in the Spill Valve.
Regards,
Fulltech.

Apr 23, 2009 | Karcher 2500 PSI Pressure Washer

2 Answers

Trouble with Karcher Pressure washer


Dear Pgarciax,
It is important that you must have mentioned the model number of your Karcher. Just the same I can surely say that your machine's fault lies in the "SPILL VALVE"
When the gun is open and pressure is being produced, the spill valve is in a relaxed position. Also it has at the bottom a valve, which when pressure is produced it is closed. If this does not close due to dirt or corrosion, the pessure goes down. Now when you close the gun,pressure forces the spill valve down to close the electrical system. Now if the "o" rings of the spill valve are damaged, the machine will start going on and off while in stand-by. So if you know how to locate the Spill Valve, all one has to do is change it with a new one.
In some Karcher machines there are 2 spill valves. One regulates pressure and the other one is for switching off the machine when the gun is closed.
Low pressure could also be due to faulty suction or delivery valves. Most probably the suction valves.
But when saying that there are short interruptions while in stand by, I stick to the fact that the spill valve needs renewing.
Regards,
MG.

Nov 09, 2008 | Karcher 2500 PSI Pressure Washer

1 Answer

I have a Karcher K3.97 pressure washer. I think I'm losing pressure somewhere because the motor surges on and off every few seconds. No obvious leaks though. Could there be an internal leak through a...


Dear Sir(s),
The majority of power washers have a spill valve or sometimes called a Control Valve. This spill valve will contract when the gun is closed. As it contracts it switches off a micro switch. Also at the base of the spill valve, an opening opens to let water circulate. Now if this Spill Valve is defective, it will make the machine lose pressure and it will make the machine switch on and off also. I sometimes service the Spill valve and lubricate with special Silicon grease. But if the end of the Spill Valve is not closing correctly, then I suggest that the Spill Valve be renewed. To come to see the Spill Valve, you have to open the cover. Most probably you see wires or a thick wire attached to the head. The part attached to the head contains the micro-switch. Remove the Miro-Switch holder and then you might see screws holding the jammed or faulty spill valve. If you cannot pull the spill valve out, try attaching water and sometimes you can switch on the machine for a second...and with the pressure,...the spill valve will be spitted out.
The switching of ON and OFF due to a faulty Spill Valve, will for sure damage the capacitor. A damaged spill valve gives all these symptoms. Machine going on and off while gun closed and while gun opened, and added to these,... pressure gets less. One small other hint....if all is OK with the machine, and when spraying the machine goes on and off....this is due to a blocked nozzel.
Regards,
Fulltech.

Aug 04, 2008 | Washing Machines

1 Answer

Karcher 520M wont operate at high pressure


The solution is very simple. All you have to do is change the spill valve.
This because the spill valve is not worth servicing. The actual problem is that the spill valve is leaking from its bottom-part seating. When you close the gun, the spill valve goes down, opens from the underside, and switches the electricity off. When you press the gun, the spill valve returns to normal, and if the underside does not close, you have low presure, because the water keeps circulating.
Regards,
MG. (Karcher service engineer).

May 05, 2008 | Karcher 2500 PSI Pressure Washer

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