Hi

Advice if possible..... Karcher keeps pulsing. No issue with water feed/pressure or leaks.

The fix.... Remove jet lance and run water through, replace lance and it works a dream until I stop spraying!!

Driving me nuts.

Currently soaking lance in hot water thinking there may be a blockage of some sort??

Anyone?!

Mine sometimes did this. Do you have your hose on a reel? I found not leaving any hose on the reel stopped it if that makes sense?

Mine sometimes did this. Do you have your hose on a reel? I found not leaving any hose on the reel stopped it if that makes sense?

 

Spot on, air pockets form in the reel which will/can cause pulsing.

This might help 

 

 

 

 

 

http://www.youtube.com/watch?v=UFXSLOBL0Mg

Defo not the hose as I've tried it with a 6ft straight piece. Will try some of the suggestions in the YouTube clip.

Cheers to all for the responses.

As stated above its air pockets developing in the system. For the system to maintain a constant flow there needs to be an interrupted flow of water going into the pressure washer.

When I first got mine it did this and that was because I was turning the Karcher on and pressing the lance without the water connected to it... Thinking I was the Terminator! The problem with this is the Karcher just pulls air into the system when it's power is on and you press the lance. Then once the water is turned on this filters round the air causing the air pockets. Giving the pulsing that you mention.

In a nutshell to prevent it make sure there is always a good uninterrupted flow of water going into the Karcher before using.

When finished turn the power off and disconnect the hose then release any excess water using the lance. If the power is on and no water connected you will get air pockets.

Hope that helps and makes sense.

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Cheers. I'll try a the above with my now clean lance too and report back. SWIMBO has plans today so it will need to be some time in the week!