Question about Karcher 2500 PSI Pressure Washer
Machine acts like I am pulling the trigger on/off at one second intervals.
I am assuming that the problem occurs when the gun is closed. This problem is due to a fault in the spill valve. When the gun is closed, pressure pushes this spill valve downwards and puts off a micro switch. Now this spill valve has "O" rings. If the O rings get worn out, the spill valve starts going up again and switches the machine on. The pressure is built and the spill valve goes down again to put the machine off. And so this goes on....ON OFF ON OFF. The spill valve must be changed. But if you see that you have pressure when gun is open, all you have to do to stop, is switch off the electricity before you close the gun. This can be done as much as you want, because no harm is done. So open the gun, switch on and work. To stop switch off and after close the gun.
Posted on Dec 18, 2008
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