Karcher Pressure Washer Not Working - How to Fix an Air Lock
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- Опубликовано: 22 июл 2024
- You connect the hosepipe, plug your Karcher pressure washer into the mains, press the trigger and you get a trickle from the gun. For some reason the pump is not switching on.
The most likely reason for this is that you have an air lock in the pump. This video shows various methods on how to dislodge air and get your pressure washer working again.
Chapters:
00:00 Introduction
00:31 Switch on and no pressure
00:53 Disconnect the lance
01:48 Tripping the pressure washer
02:31 Unplugging the water supply
03:04 Switching it off and on
03:44 Fill up the bottle dispenser
04:20 Pulsing the water inlet valve
05:28 Hozelock AquaStop issue?
06:15 Shake the air lock loose
07:29 Leaking bottle dispenser
07:59 Removing the AquaStop connector
10:24 How I fix it 
Авто/Мото
Many thanks for the wise counselling. Check for an airlock before disassembly.
Jack, the Japan Alps Brit
Brilliant mate. Thank you so much.
Looked at 4 videos before yours. The real time recording was perfect
Before watching your video I was all afternoon trying to get the air out
Thanks so much 🙏
Thanks for the feedback, yeah I’ve seen some of the other videos and it’s not really obvious if they have an air lock or are pretending so they can make a video about it.
Each time I get an air lock I try and get it working quicker than the last time, as frustrating as it is, I have not yet found the perfect technique!
One day I’m going to open it up to see what’s going wrong! 😂
Brilliant, worked after 5mins of running water through which was very spluttery.👏🏾
Glad to hear and good job 👍🏼. I forgot to mention in the video that it’s also a good idea to disconnect the hose pipe from the pressure washer to make sure there is no air trapped in the hose and it’s running continuously before reconnecting it to the pressure washer.
Thank very much. It work with your instructions
Thanks for the feedback and I’m glad it helped you fix your pressure washer.
I have had my Karcher for 6 years and it often has that problem. I have always solved it by attaching the gun turning the machine on and depressing the trigger, and after a couple of mins or so it bursts into life. No problem.
A like and subscribed from me. It worked. Thanks!
Despite what the karcher engineer’ above says this method does work whereas just letting it run through doesn’t. Excellent video and thank you.
Glad it helped and thanks for the feedback!
Cheers Mate!
It worked!
Glad to hear!
Keep up the good work!!
Thanks for the feedback, much appreciated 👍🏼
Hi mate great video. Problem I got is it will work fine for 15 to 20 mins then won't power on and just trickles. Any ideas what it could be
Not seen this problem before! How do you get it working again after it stops?
I’m guessing at this stage but could it be overheating? Does it start working again on its own or do you need to do something to get it going again?
Great video,
I think I have a different issue.😢 Mine sounds like a hair dryer and doesn't stop the noise. Karcher support said it sounds like an air lock, hence why I am watching this video
If it isn’t an air lock, is any water leaking out of the bottom? If it is check out my other Karcher video which shows how to fix that issue. If it isn’t leaking, it might be the pump cylinder head that has gone on yours, which is about a £30 part to replace.
@SwiftDevelopments Thanks for the reply. There's no water leaking from the machine.
The manifold sounds plausible. The motor noise sounds very fast, which makes me think there is no resistance on the motor. Water flows through the machine fine, but only at mains water pressure.
@@gavinnoname1424 I think the only way you are going to find out is to take it apart and remove the cylinder head and inspect it. If the motor is spinning and there are no leaks, my guess would be that the motor might not be spinning the pump to create pressure. Although I've not taken mine apart to this extent, there's a disc with an oscillating surface inside which moves the three pump head valves up and down; my guess would be to see if this disc is still spinning, and if not, how it is connected to the motor.
Ever solved it? Have the same shit
@tikvosha mine was 18months old so was sent for repair under warranty. They've emailed to say its fixed and on its was back to me now
Thanks found this video really helpful. I have run water through my pressure washer with the gun off and the water flow out the high pressure hoze is very spluttery and not a constant flow like you had. The system is new so no air filter blockage. I think its got an air lock but doesn't seem to be clearing. Do you have any further ideas? Thanks.
First check your hose pipe isn’t full of air; if you disconnect it from the pressure washer, does water flow constantly and at a good rate?
Once that’s all good, try connecting it to the pressure washer again to see if it is still spluttering. The pump doesn’t hold a large volume inside so shouldn’t take too long to clear. If it’s starting to run continuously from the pressure hose like it does in my video, it’s then just dislodging the last of the air to get it running again.
@@SwiftDevelopments Thank you for the advice :-)
IF THIS DOESN’T WORK!!! Try this because i was trying this method for hours with no joy… Plug the unit in and SWITCH IT ON. Attach the water and turn it on to the best pressure you can get. Leave the GUN PART attached with no attachment on. Spray water through the gun and shake the unit around to help clear the air. After about 30 seconds it will kick into life by itself!!
Two krachers in three years for me.
No power after 3-4 usage.
I got a K2 had it 2 or 3 years and now it won’t work. Stored inside well looking after
Check the Carbon Brushes
Acabo de tener un problema con el mío el 3.99, la presión no es suficiente y cuando suelto el gatillo no inicia a encender, tengo que iniciar el botón on/off .
Alguna idea?
Yo tambien le pongo El reset para que sirba y luego El "test" para apagarlo haha, ya Tengo dos anyos haciendolo asi es tiempo de un Nuevo hasta que algen sepa que es la problema
Swift Developments never put an aqua stop connection onto the machine. Only use on tap end!!
You’ve got a stuck pressure piston.
Amount of water being wasted....I have this exact problem it just won't work just trickles out
I know it is very frustrating when it happens. I’m thinking I might open mine up one of these days to see what might be causing it. At the beginning it never did it, gets progressively worse with age, so I’m assuming something might need servicing or replacing.
It looks like the shaking the machine violently probably dislodged the stuck pressure relief valve not an air lock
It might have helped, but I think pulsing the water by connecting/disconnecting the hose pipe is probably the most effective method of getting it going.
Thing is when it was new it would just push the air out... I think it's the pressure valve inside ?
Kärcher is the best sold brand in the market, but also the brand with the most problems. Isn’t that crazy ??
Hi, you're right. There is a relatively new company to the market called AVA which offer a 20 year warranty on their pressure washers. They look good, however the problem at the moment is that they are always out of stock!
it has most problems because most sold so it makes sense.
@@SwiftDevelopments I got my dad a AVA master P60 (large bundle that came with a foam canon and two nozzles) last Christmas, after I got fed up with having to repeatedly do this procedure.. Got it working twice, but it it sits a few days or weeks it's straight back to not turning on (an older Karcher K4 Premium) as I saw a similar fix on an other channel, I haven't tried unplugging and plugging the hose back into the machine with the water running the last time it didn't turn on, and leaving the water running dit not resolve the issue..
The foam canon that came with the AVA, was much better than the one from Karcher, and produced a thicker and longer lasting foam when I tried it.. it also took a lot less snow foam concentrate to do this..
@@TheTronder007 How have you found the AVA pressure washer for performance compared to Karcher? I saw AVA mentioning they had some issues with the pump design in the older version which was causing issues for some customers (not sure what that was and how it was fixed), but I understand they've now fixed that in the latest v4 model released in the last month or so. They do look well built, but it would be interesting to hear from an existing user whether there are any niggles with AVA after longer term use? Thanks
@@SwiftDevelopments I haven't had a lot of use of the AVA master P60 yet, but from what I have experienced so far, the AVA is not lacking in any way compared with the Karcher, and I found AVA's foam canon much better than Karcher's foam canon.. It gave much thicker and longer lasting foam with less snow-foam concentrate.. If it's just the foam canon or the fact that the AVA master P60 has a slightly bigger capacity in L/hour that our old K4 Premium I cant be sure of... It could be a combination of foam canon and capacity of the pressure washer.
I find the trigger grip/gun much better than karcher's one.. with the Ava I can attach the foam canon and nozzles directly to the "gun", as the lance detaches from the "gun", where as on the Karcher the trigger "gun" and lance is one solid unit
The AVA master P60 is also a lot more stable and less prone to toppeling over compared to the Karcher 😄
Don’t put an aqua stop on the machine end!!
I’m a Karcher engineer of 21 years, you’ve know idea. You’ve got an aqua stop on machine end, big no no. Shaking machine around will make no difference. Sounds like a stuck pressure piston. Running machine with no gun and lance will not clear airlock as most people don’t use chemical and that just draws more air into pump head at low pressure!!
So what should you do?
You'll be out of a job if it does work,
What about the K4 keeps tripping the house’s main!!
What about my K4 full control it stops working for around 2 ton3 seconds then starts working again, what may cause this
Margaritas come out of mine 🎉
Use the lance
To use the lance or not to use the lance, that is the question!
Karcher are crap ...never heard anyone not having problems... problems that occur after light use ...they are an embarrassment pumping out unreliable machines...my dad has a cheap aldis one and it still works after years of heavy use ...
Worst bit of kit I have ever bought should have just bought a cheap one How many of peoples time has this shit thing wasted
It is annoying because some of these breakdowns wouldn’t happen if they simply made the parts out of metal instead of plastic.
Hey man. I think its an airlock not sure. Left it for around 30mins and nothing. Any tips. I need mine to work. Can you perhaps drop your Instagram so i can chat with you.