Question about Karcher PSI Electric Pressure Washer

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Motor cycles on and off when trigger not depressed

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Simple fix...... There is an O ring on the end of the pressure hose that seals it to the pistol grip that the various nozzle wands fit into. The O ring is either cracked, which may not be obvious with a cursory inspection, or a small piece of it may be missing. The O rings harden over time and crack and then start to fall apart. Just fixed mine in 30 seconds with a free O ring from the hardware store. Just make sure it is of the correct diameter and material thickness and everything will go fine. The O ring should appear minutely larger than the brass stem is sits on.

Posted on Jul 14, 2010

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1 Answer

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I had this problem once and the trigger was defective internally. You should be able to purchase a replacement trigger assembly at the link below.

Link: http://home-and-garden.become.com/tva6-trigger-valve-assembly--compare-prices--c205367842

Cost: $19.99

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1 Answer

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1 Answer

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sounds like your armature and field is burnt. once they have both got hot you need to replace the armature and field as well as the brushes and holders.

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1 Answer

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1 Answer

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