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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

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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!

The motor will stop when pressure is up to the designed pressure.

Posted on Oct 03, 2009

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Posted on Jan 02, 2017

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Disconnect hoses.
Look for kink in water hose.
Check incoming water connection for filter washer
Replace filter washer
If you don't have a filter washer, put one in.
Hook up water, and turn on
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Turn on machine.
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Hook up washer hose without gun
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We had to buy guns now and then.
Search for pressure washer guns
Following link shows guns we used:
http://www.ultimatewasher.com/pressure-washer-trigger-guns.htm

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