Question about Karcher K2.26 Electric Power Washer

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When i switch my karcher on the motor makes o noise and does not turn

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I have a water cooled K5.140, barrel shaped karcher. Mine suddenly stopped working. Bit of a faff getting the casing apart but not beyond most competent car repairers. Once on the becnh look where the power cables enter the motor unit. Mine has a black box with clip on cover. Look between that and the metal of the motor/pump. There is a thin plastic toggle that will be stiff. WD40 on it and move the flat lever underneath it up and down with a flat screwdriver. This toggle and lever shuts off the power when the water pressure in the pump is high, so if it is stuck open you have no power to the pump. Took me less than 5 mins and a squirt of WD40.

Posted on Aug 23, 2012

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This sounds like you may need a new capacitor. It is not a costly part to get. What the capacitor does is "jump starts" the motor so if it broken the motor will not start.

A test you can do is if you take off the front caseand then set the machine up as if you were going to use it. then when you turn on the machine quickly push the fan blade of the motor with a flat headed screw driver. If this makes the machine start to work, then you know that you need a new capacitor.

Just be carefull when doing the test.

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Posted on Apr 04, 2011

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Posted on Jan 02, 2017

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SOURCE: karcher K2.91M nlets water in and out but won't

wot like a buzzing noise if so try and turn the fan at the rear of the motor if you can do this it is more than likley the capacitor

Posted on Jan 20, 2010

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From experiance it sometimes can be more cost efficient to purchase a new Karcher machine and get the 12 month warranty than spending money on an older machine.

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