karcher problem

Joined
3 May 2006
Messages
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Location
Lanarkshire
Country
United Kingdom
My karcher K397 seems to have not as much pressure as it used to. Its only just over a year old and out of guarantee. Anybody with any helpul tips or who know anybody in Scotland who can repair it. I would be very grateful for any help.
 
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The most likely thing is dirt on the valve seats. Strip it carefully and clean the valves.
 
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I had the same problem ... look for a black plastic cover with a silver snap on top; pry off the silver snap and lift off the plastic cover; next remove the two screws on the top plate then pull out the piston inside - if unable to lift out, start unit and watch it pop out - coat piston with lithium grease and reinstall - it will work great!
 

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