For weeks it was great cleaning our walks and driveway but suddenly it seemed to lock up and the needle would not work. Can't blow air thru it held tip downward but air will pass if held nozzle tip upward. The tip of the needle is visible and you can shake it so can't figure why it will not work and let water pass thru it to swirl the needle.
Those tips do not last very long Mine died like that also. Bummer.
SOURCE: Karcher 211 - no motor action
Dear Tigger82 (also montaver2000),
This explaination is relavent to various Karcher models, especialy your model. When you are using the machine with the gun open....presurised water comes out of the lance. When you close the gun, the machine stops. This happens by means of a Spill Valve or often called the Control Valve. When the gun is closed, this spill valve cotracts with built up pressure and at the same time works on a miro switch which cuts the electricity....and thus stops the electric motor. Now in many cases when the gun is again opened, this spill valve sticks and keeps the electric circuit closed.
In all cases you must open the cover, and locate this spill valve. Sometimes it is easy to see a micro switch on it. If you remove the miro switch from the spill valve the motor will for sure turn.
Now the spill valve gets stuck for many reasons. One of the reasons is that you leave the machine under pressure for a long time and even store away the machine with pressure still in the system. A spill valve also gets stuck due to detergent. I sometimes service the spill valve and lubricate with special solicon grease. But the best way is to change the spill valve with a new one. So in a few words, the spill valve is stuck and leaving the microswitch off. So the electric motor cannot turn. One final hint is that sometimes the spill valve is difficult to remove. So all one has to do is attach water supply and switch on the pump. With the pressure produced the spill valve will be pushed out. In my oponion this job must be done by a person who knows what he is doing. Carefull that you have safety electrical breakers. See that you have safety shoes, safety gloves and eye protection.
Regards,
Fulltech.
SOURCE: Karcher K 3.86 electric. Was working fine and
It sounds like you have cracked part inside. Parts availability depends on were you live???
SOURCE: Dear sir/madam I bought a kArcher model K3.97
Peter , sorry to say but there is no replacement parts for that lance , you just replace the entire thing
its called a Dirtblaster lance
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