Air in the system can damage a pressure washer's pump and reduce performance. You should bleed your pressure washer if you have been replacing internal parts or if it has not been used for a long time. This video shows you how to fix it yourself and prolong the life of your machine.
Hi, I'm Mat from eSpares.
Now, if you've just purchased your Karcher, you haven't used it for a while, or you've recently replaced any parts, it's always a good idea to bleed the system to release any air left in there.
How you do this - connect your garden hose to the inlet cover, making sure the high pressure hose is detached from the front. Run the water through the system. Now do this for a minute or two just to make sure any air is gone. Now once that's done, reconnect your high pressure hose, like so, and you're ready to start pressure washing.