Hi. I wonder if you can help please. I have a Karcher K620 MH. Failed to start after lending it to the next door neighbour! The green light is illuminated on the on / off switch. The only thing I can think it may be is the condensor / capacitor. I haven't tested it yet, but if it's ok, do you have any ideas of other reasons it won't start? I've done all the suggestions in the manual. Also is it just a case of testing the unit on a muli meter to see if there is a circuit? Many thank for any suggestions you may have. Brian.
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