Having problems with your Karcher 2500 PSI Pressure Washer ?

Pressure washer lacks pressure initially?

\015 No pressure initially when pressing trigger. If tip removed then trigger pressed, pressure builds up; tip replaced and washer works great as long as trigger held down continuously. If trigger released then pressure is gone. Then have to repeat process of removing tip, holding, trigger, etc.Is there an easy fix for this problem? Thanks.\015

Answers :

Dear allbusiness9,
\015\012This 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.
\015\012But in my opinion and experience, your problem is in the Spill Valve.
\015\012Regards,
\015\012Fulltech.
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