KARCHER Pressure Washer Not Working | EASY FIX In SECONDS
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- เผยแพร่เมื่อ 5 ม.ค. 2025
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KARCHER Pressure washer NOT WORKING ? - How to quickly and easily fix a KARCHER K2 K4 or KARCHER K5 K6 pressure washer that WILL NOT TURN ON. PLEASE watch this video before GIVING UP on your Karcher K2 K4 or K5 K6 jet wash. Don't assume that the Karcher K2 K4 or K5 K6 premium pressure washer is broken because it will not turn on. It is a fairly common fault that is caused by trapped air in the system. When air is trapped, the machine will not turn on because it is fitted with a safety switch that will not allow the motor to run when air is in the system.
This problem is usually easily rectified by simply bleeding the system to get rid of any trapped air.
In this video I show how quick and easy this is to do, and I am fairly confident that this will FIX the issue.
I ended up buying a new Karcher pressure washer because I assumed that my Karcher K5 premium pressure washer was broken as it would not switch on. I changed the fuse in the plug, swore at it, hit it with a hammer and it still did not work !
I could not bare to throw it out as it was only just over a year old and I vowed to take a look at it once I had time. Finally I had some time to research the issue and found this information on the internet. It worked a treat and I thought that I would share it in the hope that the information provided helps some other Karcher pressure washer owners out there who are experiencing similar problems !
I have had it confirmed that this also works for the Karcher K2 and K4 pressure washers as well as the Karcher K5 pressure washer.
I hope that this video is of some help and please leave your results in the comments as I am genuinely interested in finding out if this works for others.
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Ι was taking my little karcher pressure washer to the trash as it wasn't turning on anymore, and in a moment of devine inspiration I searched youtube for a solution and your video (thank God!) was the first one I clicked. Miracle of miracles, my machine works great again thanks to you, THANK YOU THANK YOU THANK YOU!!!
Fantastic!
Excellent video - clear, no unnecessary music, and, best of all - it works!!!! Thank you very much indeed.
Glad you liked it and thanks for the comment !
It's great that you can share your experiences with the Karcher! A real credit for helping many people. Unfortunately, there are many variations of the Karcher - over the years, and they all seem to display many different symptoms - when in a 'failure mode". I own a HD 575S. It's an old machine from 1990. There is no fancy Pressure Piston & Microswitch for the "Instant start" function. The pump on this model, has twin valves (17mm A/F) on top of the high Pressure Casting. On the side of this Casting is a smaller (14mm A/F) Inspection Plug. My machine has the symptoms of not shooting high pressure water (intermittently) as you pull the Trigger. Sometimes when you squeeze the Trigger - it works fine. I stripped and cleaned all parts of the Karcher today, and everything (including the springs & valves of the Twin Valves) looked perfect. So, (now) I am suspecting the Trigger Mechanism of the Lance. I suppose many people will have a Karcher that has very niggly problems. My Karcher goes way back to the 1990s. It's not dead yet! I will find the cure. Greetings from Australia.
Thanks for the comment Peter, and greeting to you from Scotland UK !
Thank you for your video. It didn't work for the 1st ten minutes but left it for another 10 and now it's working 🎉👍
Great to hear, thanks for the comment
A great example of TH-cam and the Internet can be a positive tool for anyone. It is a credit to you that you have taken time out to help others in this way! I watched your video and solved my problem in 10 mins and saved on buying a new washer to replace one that has only had minimal use. sincere Thanks!
Great to hear Chris! Thanks for the comment ! 👍😍
Thought my old Karcher had finally given up, but your advice completely saved the job and also my having to buy a new machine. Such a simple solution - happy to contribute to the channel and many thanks indeed.
Glad it worked for you and thankyou very much for the donation to the channel, that really was very kind of you. Thanks again !
Just tried this on my K4 that had stopped working yesterday in between jobs and it worked 🎉,now very happy as I spent last night looking at replacement models ,I love TH-cam for this type of stuff 😊
Thanks for sharing 😍👍
You’re a bloody legend ! Used this trick on our karcher today . Hubby was convinced it was broken . Worked a treat !
Great to hear! Thanks for the comment
Thank you from NZ, big help. Wand wouldn't disconnect, but you gave the belief that it could be fixed. Cheers mate. 👍
No problem 👍
Absolutely brilliant, thank you. Ran water on the K2 for a couple of mins, reconnected and karcher working as expected. It was a challenge for me to remove the hose from the main lance because so much pressure had built it. Quite the bang once I prized off the yellow clip just just take care when doing this bit. My sincere thanks for posting this.
👍
Thank you so much for your video, i was literally changing fuses and trying to hire one. Looking at the comments you have helped so many people.
Big thanks from me and many more you help!!! ❤️
You are welcome!
It worked! Bloody Hell - I probably binned my last Karcher years ago, that could have been saved, due to the same problem, Many thanks! I will spread the word with other pressure washer users.
Great, thanks for the comment and for the extremely kind donation to the channel - thank you !
The pressure washer stopped in the middle of a job and I thought that I was done! Luckily I came across with this instructive and I am back on business!! Many thanks!!
Excellent!
As with the majority of your comments, I was also ready to take my pressure washer to the skip when the pressure stopped working.
Thankfully I came across your video and this sorted out my problem.
Thanks a million 👍
Glad it helped and thanks for the comment !
Just past the warranty and it stopped working, this video saved me a lot of money. Thanks mate
No problem, I am happy that this helped you out ! 👍😃
Was just about to throw mine away. This worked a treat, sent you a small thank you on paypal.
Wow, thank you Sam, that is very kind of you. I am happy that this worked for you and saved you some money. Thanks again mate 👍😀
Great stuff!. Like others, I was about to dump my K4 Karcher and buy a new one. I tried your method and it worked perfectly.
Great to hear!
Gr8 video, I actually chucked me Karcher out on the Kurb for the local Council cleanup then started wondering if it had a fuse, googled it and found this video, went out at 3am brang it back in, done as per instructions informed and butter Bing she worked. Even after I’d cut the power cable, re-wired it plug her in putt, putt, putt, putt idles works
Thanks 🙏
Must have some pressure sensor in either base of hose sprayer or inside machine itself, resetting that sensor works a treat.
DO NOT THROW OUT PRESSURE WASHERS TILL TRIED THIS..
Great to hear Steven, another Karcher brought back from the dead ! Thanks for the comment 👍
YOU BEAUTY! I just used your tip and it fixed the Gerni 125.5 I paid $20 for at an auction.
Great to hear !
THANK YOU!!! I had taken the thing apart and couldn't find anything wrong with it. About to give up, found your video. And that was all!! 👍👍👍
Excellent! 👌
Thank you so much for this video, I thought my karcher is gone and thanks to you is working again. May God bless you sir
You are welcome
Brilliant fix! My old K090 model exhibited these exact symtpoms. Thanks to this video and the comments ive now fixed it! Thanks 👍
👍
You have just saved me buying a new power washer. Thank you so much
Glad I could help👍
THANK YOU SO MUCH!!, almost threw out the Karcher after eliminating what I thought were the possible problems, it now works perfectly again.
I am glad this worked for you Douglas and thanks for the kind donation to my channel, much appreciated 👍
What a life saver you are! I was just about to ditch this thing when I found your video. You have really helped me out of a tight situation. Thank you for your effort.
Glad I could help!
Fantastic and informative. Got mine working in 5 mins. Saved me from replacing my washer.
Great to hear!
Great video, I was just about to bin it, thank you so much, made my day being able to get it going, my husband couldn't believe his ears
Great job!
Hi there, thank you, thank you, thank you. I was just about to smash my karcher k2 to pieces, then I decided to try online to fix it and there you were! You are a clever man.
Glad I could help and thanks for the comment 👍
Thank you from New York! Your instructions worked and saved my Karcher.
Thanks Ellen, I am glad that worked for you and give my regards to NY - I love that place ! 😎
BRILLIANT ! Saved me a lot of grief. Worked first time. Thank you indeed !
😎👍
I tried it before taking karcher apart and it worked,thank you so much for awesome tip
You're welcome!
Brilliant followed the clear instructions and the K4 is now working and we are going back on the job
Great news, thanks for the comment 👍
Many thanks....just had my finger on the buy now button to replace my K4 ....thought I'd give your video a watch....working perfectly....I wish you well sir.....POD62....
No problem 👍
Cheers- worked a dream! Karcher should mention this method in bold text in the setup section of the handbook.
Just bought a new K4 and had this problem from the outset. Assumed the unit was faulty and after some cursing & kicking of the blasted thing resorted to washing the car by hand then found your video during a trouble-shooting exercise before dismantling/returning the K4.
Thanks for your efforts ;)
Thanks for the comment and I am glad the video helped you out. Yes, Karcher should definitely mention this as there must be SO many of these machines get dumped when there IS an easy fix.
Brilliant thank you. Karcher Helpline told me it must be the motor which had burnt out so I was about to buy a new one!
Thanks for the comment, glad it helped you out.
Worked first time! I thought it was the thermal cut out but this saved my buying another 🙂 very happy, thank you and subscribed.
Thanks for the sub Darrell and thanks for the comment 👍
Thank you so much for this tip! My Karcher K3 was about to be signed up to either the tip or to a new mortgage for repairs. Instead, I followed your fix and, 5 minutes later, all was working well. I am drinking your health right now with a glass of red wine! Thank you.
Thanks for the comment and I am happy it worked for you - enjoy the wine !
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Excellent, great information, it happened to me today first time , rinsed my first wheel and it just stopped, was ready to pack it to the tip but it started working, now I know what to do next time it happens 👍🏼
Glad it helped
As everyone already mentioned thanks a lot you’re legend. Saved us from buying a new one 👍😆
Glad to help
Just about to order a new Karcher pressure washer.Not working as you describe.
5 minutes later,after flushing out with water, it's running fine .
Thank you for your help
Andrew 😁
You're welcome !
Thanks! My Karcher was working fine one day, then I left it outside overnight with the electric disconnected. The next day, it wouldn't start. So I'll try your fix in the morning.
👍
at first i thought it was the fuse, after watching this video, it works. thank you for sharing
You're welcome!
Good video thanks you saved another Karcher 🙏 I left mine on while pumping water through and it started working after a couple of minutes.
Great 👍
Karcher now sorted. Thank you so much for your well explained video.
The present Karcher is my 2nd - I suspect the first one had exactly the same issues !
Glad it helped Paul and yes, I bet your last one just had an airlock too !
Brilliant tip! Thank you for posting this very clear and easy to understand video. Saved us a lot of money!
You're welcome!
I was about to throw away. Luckily watched your video and sort the problem out. Happy days 😊 Thanks a lot
Glad it helped mate !
Thank you so much for posting this! This fix worked for us. To think I nearly took our expensive Karcher to the dump. Works perfectly again. Cheers!
Glad it helped! 👍
Wow this works , wouldn’t have had a clue there. I changed the fuse and all kinds first. Top man you’ve saved my birthday 😊
Great, thanks for the comment !
Great advice!
Mine was on it way to the skip when I tried this.
Back to working within minutes 🙂
Big Thanks!
Glad it helped!
First video I clicked on, worked first time! Much appreciated
You're welcome!
Hello I have this
problem mentioned I have bleed the jet washer but its still not working. I had the same problem last year and this fixed worked.
Thanks for sharing 👍
Absolute legend 👍👍👊👊. Many thx mate. I was thinking I’m clearly doing something wrong as wasn’t working. Tried different sockets and anything else I could think of but no joy. Tried yr unplugging wand for airlock trick and BOOM….working pressure washer. Superstar, many thx👍👍
No problem 👍
This was exactly my problem! I had to run the water for more than 5 minutes until it stopped spluttering. Then it worked great. thanks.
Glad it helped! 👍😎
great suggester! you saved my life with this tip.... thanks a lot from Italy.👍👋
You're welcome!
Thanks......cured the problem and saved me the expense of having to buy another
Great to hear Rob, thanks for the comment 👍😎
Wow, this saved me £100! Thought my pressure washer was busted! Man's a hero
Thanks Russell, I am happy this saved you some money. Thanks for the comment
This worked for me - I had not used it for quite a while as been cleaning my car at car wash and then using Williams waterless shampoo in between for the last year maybe.
Thank you
Thanks for sharing
Wow many many thanks for the video, I started to strip mine down thinking it was the switch unit 🙈, all sorted now 👍🏻
😎👍
Brilliant... So many items thrown away that still work. Including mobile phones....
Thanks for the comment
Just worked for. I quickly cancelled my order for a new. BRILLIANT
😎👍
Absolute legend saved me a very awkward conversation after borrowing a karcher!
👍
Worked for me, the only difference is I had to provide a little back pressure with my finger after 10 minutes because my water supply is a bit doggy. Then the trick worked perfectly.
Thanks for saving me begging my Administrator for another one 😅
Great, thanks for the comment
Worked on my Karcher, not sure of the model but no numbers on it! Thank you 😊
Glad it helped and thanks for the comment Lyndsay !
This has worked for me in the past, also check the water filter in the machine, this can also cause low flow/water pressure.
Thanks for the comment
Brilliant thank you so much worked a treat - had almost given up on it!
You're welcome!
Did as you said Eureaka all was well. An hour into the job lost pressure. Did the same there must be air in the supply pipe which is new. Also realised that my lance pressure control also stopped functioning properly. So will strip the lance down in case something broken or a seal perished. The joys.
Thanks for the comment, hope you get it sorted John !
Thank you ever so much googled about no pressure in my karcher, watched your video and hey presto it works just great, was about to go and get a new one.
Glad it helped Robert, thanks for the comment !
Was very sceptical but worked! Thanks as thought I was going to have to buy another.
Great to hear!
Thanks for this. Replaced 4 karchers over the last 7 years....#### product.
Glad it helped Keith, I know, I done the same thing over the years,,,,,,,,
Wow ! Just saved me the cost of a new washer, thanks very much!
You are welcome!
Thank you, this worked for me and removed the need for replacement.
Great, thanks for the comment
Top advice there pal... just about to go get another an saw this on you tube and it worked.... thanks fella
Great that it worked for you ! Thanks for the comment !
Thank you so much . Brilliant 👍It worked. God bless you 🙏🙏
Unfortunately it stopped working after 5 minutes. For 20 minutes water was on after that we tried again it’s not working. Please help
You're welcome!
Not sure, try running water through it again ?
We Called the company yesterday. It started to work. Let’s see how long it works . Thank you
Brilliant advice, it worked ! Thanks so much as we were just about to skip it!
Great !
You are brilliant! I was just about to look fir a repair centre. Thank you
You are welcome!😎
Been looking for my receipt but found this video and it worked! You legend.
Glad I could help 👍
sensational advice. Thank you so much. Gary Melbourne, Australia
Glad it was helpful Gary, thanks for the comment !
Mine has been having pressure issues but I reckon this might be the fix. I have had the lance detached and it was splattering like that but didn't realise that it could have air on the system. Will try bleeding it when I use it next. Thanks
👍
Thank you for the video advice. My old but powerful water blaster that would not turn on did so after seeing your video
Glad I could help
Thank you so much, had no idea what to do and you saved me buying a new one. 👍
Glad I could help and thanks for the comment 👍
Thanks for the tip.. My Karcher k2 is now working again.. 👏👏👏👏👏
Glad it helped Robert !
Thank you so much for that.
Followed your advice, my machine working again.
Cheers. Richard.
Glad it helped Richard, thanks for the comment 👍
Legend! Was about to strip the thing down. Thanks for this. 👍
Thanks for the comment 👍
Brilliant had same issue tested and worked!!!! Thank you!!
You're welcome!
Thank you so much Sir for taking the time to create this video. Worked a treat!
You're welcome James, thanks for the comment
Mate.....you just saved me!!! Was about to kick the piss out of my Karcher!! Thanks for the video legend!!
Glad it helped mate !
This video has worked a miracle. Was about to buy a new one, but this solved the problem. Thank you so much 😊
You're welcome!
Thank you! That was the problem with my Kärcher.
Thanks for the comment !
Awesome, thanks mate. Fixed in under 10 minutes!
Great to hear!
Thanks a lot for this, it fixed mine exactly as stated. Saved me a couple of hundred quid.
Glad it helped 👍
Amazing! It works. Thanks very much, was about to lob mime in the bin. Cheers
You're welcome!
Perfect, fixed my problem very easily, thank you
Great to hear!
Thanks so much for this - BIG help! I was on the verge of ditching it!
You're welcome! 👍
Just done this on my k4 works again brilliant saved me £200 squid
Great, thanks for the comment
Great ! I have an old version of the K3 ...the hose does not come easily off the handle (and I did not want to open the handle)..but removing the nozzle ans pressing the trigger (no elecric power) to let water flow as indicated did the job ....great thanks (specially since the K. service in my country is absolutely no help !
Great to hear, thanks for the comment
Thanks
Thank you Jason, that is very kind of you. I am glad this worked for you mate 👍
Thanks worked, Karcher is back in operation
👍😎
Genius!! Thank you!!
Thanks Robin, glad it worked for you !
This actually worked. Thanks a lot.
You're welcome!