20 Most Recent Karcher Electric Powered Hot Water Pressure Washer HDS 2.3/12 C Ed - Page 3 Questions & Answers

I have repaired several of those almost every one of them would not build pressure due to the the 3 plungers each one has a small screen a small spring and a small rubber disk need to take them out and clean and inspect there is a repair kit they sale for that power washer that gives you every thing I describe but they are more than likely clogged up be careful taking it apart the parts are very small well lighted room clean floor just in case you drop something

limited information generic answer find whats leaking and fix or replace it

Insufficient water pressure would be my best guess.

Operating manuals

Karcher wv2 won't charge.

Sounds like its shot. You can probably buy a replacmentnoff Ebay at a low price.

Actually it's on the box above the bar code. But who still has the box right?

I have one that will shut off pressure when the water supply varies. Check your water tap, make sure all your connections are TIGHT. If not they will suck air and interrupt and pump cycle. Use new hose washers on everything. The engine (mine is Honda) will also buck in response to varying flow demand. It has an auto-close spring/lever to prevent it from overrunning if it loses incoming water. Good luck.

this can be that you need to bleed the system of air or that there is a problem with your trigger gun sticking when you release the trigger. These are two things I would check before you go into the machine.

Here is a post that will help you. http://www.fixya.com/support/t27260394-check_oil_level_karcher_kb2020

Try this link: https://www.youtube.com/watch?v=4WZgprLndhU