How to Repair Water Blaster - Karcher No Pressure

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Kärcher Diagnosis & repair of a pressure washer / jet wash when the pressure keeps dropping when the lance trigger is stopped.
Disclaimer:
This video was created for informational and educational purposes only. I cannot guarantee against the improper use or unauthorised modifications of this information. No liability for property damage or injury incurred as a result of any of the information contained in this video is assumed. Use this information at your own risk. I recommend safe practices when working on any vehicles and with tools seen or implied in this video. You are using the information and automotive parts shown in this video solely at your own risk. It is not intended to be a substitute for the professional advice of a service centre, technician or mechanic.

Опубликовано:

8 сен 2024

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Комментарии : 55

@PatrickVanReeth-e8y 14 дней назад

I bought a Karcher 620 25 years ago, and I met this very problem 10 years ago. I found your video last week, and I followed precisely your very accurate procedure. the final result is perfect !!!! it works again now. 1000 tanks for the good job !!!!!

@AutoBuddynz 14 дней назад

@@PatrickVanReeth-e8y Thanks for the support! If you like this video and subscribe it will greatly help us keep creating content

@mdouras2571 6 месяцев назад

Great instructional guys. No 10 minute chatter before hand like all the US guys like to listen to thoer own voices. Just simple straight forward clear advice. I have this machine and it's a rare thing now.

@AutoBuddynz 6 месяцев назад

Appreciate the support! These were the golden era of machines built to last

@dekurvajo 20 дней назад

I just bought this machine almost like new.instead of a K4. My reason was exactly the reason you pointed out here. No bluetooth, no mambo jumbo, but induction motor, no plastic, simplicity, - my right to repair -

@AutoBuddynz 20 дней назад

@@dekurvajo They are great water blasters.

@robertjones6488 Год назад

When I had a boat my 620 was used very often but now it is just used once a year and needs this fix very often. But I always have to check the procedure here, so thanks for the great video. A couple of points. I manage to get the unloader out without removing the electric box by sliding out the rubber attaching the electric box to the piston housing. Also, if the piston is stuck fast, be careful not to damage/bend the thin piece of rod using pliers. If you unscrew the rod from the piston, you can put in a long bolt and give yourself more power/ leverage to remove the piston and replace the rod undamaged.

@AutoBuddynz Год назад

Thanks for the info.

@TheFordna Год назад

What a great video - great instructions and diagnosis - saved me hundereds of $. Loved your explaination of the symptoms - thanks

@AutoBuddynz Год назад

Appreciate the comment, thank you!

@Dezza318 Год назад

Excellent video. Thank you so much. I have 3x of these machines and each one has a similar problem or leaks. I never had the confidence to diagnose the problem but now I will give it a go.

@AutoBuddynz Год назад

Great! And thanks for the comment

@Wayne-Jones 7 месяцев назад

Wont help me with Karcher issue but well made instructional video 👍

@AutoBuddynz 7 месяцев назад

Thanks!

@eduardotirapelle1064 10 месяцев назад

Thank you so much for the class about cleaning solenoid valve I have my Karcher 620 M since 1997 and I love the machine, but during this period I've probably sent the machine at least 15 times to clean this solenoide, thinking tha it had to be replaced. I probably invest about 02 ot 03 time the machine's value, reparing it I'll not send it anymore to the technical assistance.

@AutoBuddynz 10 месяцев назад

Thanks for the info!

@brandywell44 Год назад

Thankyou for your helpful video. I had a problem today with my 620M which cut out and it was the machines thermal switch which reset after 30 mins. The reason was my own fault as I fitted a rotary lance and didn't bleed through first. It jolted the system and cut out. Okay now, though I do have this same issue you had too, so a rebuild is something I shall have to do also. It is over twenty years of age and worth looking after.

@AutoBuddynz Год назад

Thanks! Glad it was useful.

@brandywell44 Год назад

@@AutoBuddynz I followed your video and took it apart this morning and rebuilt with a clean and grease. It is now working properly. Thankyou again.

@AutoBuddynz Год назад

@@brandywell44 Appreciate the feedback, thank you!

@UbayLanas Год назад

Thanks for posting this. It gave me insight into how to fix my Archer 410. Blessings

@johnw8476 Месяц назад

Exact same issue a few months back now it wont reach full power even when adjusting the nozzle.

@siman1969 5 месяцев назад

Very good explanation😊

@AutoBuddynz 5 месяцев назад

Thanks, appreciate it!

@charliechan4650 6 месяцев назад

Excellent video

@AutoBuddynz 6 месяцев назад

Thanks!

@faletiute 7 месяцев назад

Thanks alot for the video, it really helps us diagnose our waterblast. Just one more thing, how to get those sets of rubber rings and those kind of grease?

@AutoBuddynz 7 месяцев назад

We got that from our local Karcher Dealer just ask for the parts / service department

@faletiute 7 месяцев назад

Is it possible to deliver to Fiji if I place the order from Fiji?

@AutoBuddynz 7 месяцев назад

@@faletiute I suppose, might be best you contact them via email

@saimirnikolli4748 Год назад

Thanks so much I did the same and it worked fine ☺️

@AutoBuddynz Год назад

Awesome!

@markbusby9709 11 месяцев назад

Thank you

@AutoBuddynz 11 месяцев назад

Appreciate the comment!

@toshyt Год назад

Great video 😊

@AutoBuddynz Год назад

Thanks for watching

@markward38 10 месяцев назад

Thankyou for your very good instructional video. For many years my old 620 has suffered this problem and now I know how to fix it. I have another problem with my 620 though the switch on top of the unit won’t remain on when I push it down the way I keep it on is by placing some very heavy sticky tape across it . Any idea how I can fix it.

@AutoBuddynz 10 месяцев назад

Thanks! Open the switch and see what the issue is. Not difficult to replace this with another waterproof one if needed.

@Spoonrrr 3 дня назад

I have the exact same problem. Was looking for this on RU-vid for soo long. Now I found it!

@jagpessoa 20 дней назад

Hi, did you have to have an M adaptor to use the Karcher Foam Gun? Thank you!

@gopakumarnarayanapillai5460 2 месяца назад

Pls show about hd 5/12 full service

@dnkjdnkj2679 Год назад

I have been offered one of these K620M machines. How old are they and are they a long lived machine worth rebuilding or better to purchase a later model such as the K5 series? Thanks for the clear video.

@kenlee5461 Год назад

What type of grease is that? It's a great informative video. Thanks

@AutoBuddynz Год назад

Its the grease Karcher supplies. Just visit your local dealer. White type of grease

@simonmilgate6606 Год назад

Hi i have the 620m and it all starts but have no pressure at all anything you could help with please thankyou 👍

@joemoore5570 Год назад

Hi, great video, I have a K5 not the power control one just the normal one and it doesn’t seem to have any power as in when you turn it on with everything connected nothing happens I’ve left the water to go through as some people say about the air locks but even after trying that and taking it apart I can’t seem to find what’s wrong with it? Any help would be greatly appreciated thanks.

@AutoBuddynz Год назад

Hi thanks, does the electric motor start running? As it could be a bad motor start capacitor or maybe the on /off switch is playing up on top of the water blaster.

@joemoore5570 Год назад

@@AutoBuddynz Hi thanks for getting back to me we took it apart and water had got into the coil.