6Karcher K4

Karcher K4

 Verified
6Karcher K4
2.3

22 reviews

PositivevsNegative
32% · 714 · 64%

Build Quality
2.3
Value for Money
2.3
Ease of Use
3.1
Cleaning & Maintenance
2.7
Noise Level
2.9
Safety
3.4

Reviews

22 reviews
John S.
John S.South-Eastern Region, NSW3 posts
  K4

Karcher K4 poor quality

One year of light use and pump failed spraying water out of casing. It's a pain the warranty process have to box up and send back to Victoria. Wouldn't buy again. Show details
Ease of Use
Cleaning & Maintenance
Noise Level
Safety
Karcher
Karcher   DM   
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rod saunders
rod saundersSydney, NSW9 posts
  Premium Power Control

Best pressure washer I have ever used

I replaced my old Karcher pressure washer with the lastest K4 power control. This washer easily cleaned the pattern concrete and sandstone around the large surrounding pool area. The washer come with complete control being able to lower the pressure so you can clean the garden furniture without damaging the paint work. I can not say enough about this cleaner as what was hard work before which took all day was no cleaned in around 3 hours.
azreal
azrealSydney, NSW17 posts
  Premium Full Control
Value for Money
Noise Level
abdul
abdulSouth East Queensland, QLD14 posts
  Verified Premium Full Control

Perfect for around the home

Karcher K4 has great pressure and is easy to use. It also has a section where you can use Karcher detergent to clean the patio and wash the house. It also has window solution. great product Show details
Build Quality
Value for Money
Ease of Use
Cleaning & Maintenance
Noise Level
Safety
Ronnie
Ronnie
  K4

Cheap quality built rubbish with limited life span

Used it once to clean the driveway and it never worked again. I rang the local supplier who asked if I used an extension lead for the power and a long hose for the water supply. When I explained that it was a long driveway and had to use both, he said it was my fault that it was broken. He also said it should not be used for more than 20 min. When I asked If it could be repaired he said that they don't touch anything below a k5 as the other models are made of plastic and not worth the bother. The message I got was that it is cheap rubbish with no build quality, yet they still sell them to suckers like me. Lesson learned. Show details
Ease of Use
Cleaning & Maintenance
Noise Level
Safety
Cam
CamSydney, NSW4 posts
  K4

Karcher are now Rubbish!!!

Had a Karcher that never missed a beat over 10 years before it died so decided to buy another one. Bought a new K4 Compact from Bunnings as I was impressed with the water cooling design but how wrong I was. Karcher definitely don’t build them like they used to. I only used it to wash my car once a month for 9 months before it bellowed water from within and no longer held any pressure. Still under warranty right? Sent them an email with all details and pics and still waiting for a reply?
Looking at all the reviews here across the Karcher range, I don’t really want a replacement just do it will fail again. Steer clear peeps, no longer a reputable company or product. Show details
Sue
SueSydney, NSW5 posts
  Premium Full Control

Absolute Rubbish

Purchased 15 months ago and now it has lost all pressure. Only (1) service department an hour from home. The technician advised the loss of pressure is a common problem. Then why sell them I asked. He said I had to bring to it to them and not back to Bunnings were purchased. This is the second Karcher product I have purchased and they only last 12-24 months... Never again. Show details
Noise Level
Safety
Happy Home
Happy HomeSydney, NSW15 posts
  Verified Premium Full Control

Karcher K4 High Pressure Washer Has Worked Very Well for Me Over the Past 4 Months

I have used it to blast away the dirt from concrete paths, pavers, tiles, sandstone and have been very happy with the result. You can see the dirt disappear as you work so it's very satisfying. Lent it to my neighbour who was also very happy with the result. Hope it keeps working well for years to come as I whip it out when I see a dirty floor so I can then seal the dirt away with a liquid paving sealer. It works much better than one I bought years ago and that may have been an Ozito Bunnings branded entry level high pressure washer. Show details
Noise Level
Safety
Helen
HelenSydney, NSW2 posts
  Premium Full Control

Do NOT buy the Karcher hose connection for use with bucket

I bought a Karcher 4 to clean my apartment patio. It collects a lot of bird poop and I thought the Karcher would work. I do not have a hose pipe do I bought the hose attachment. It only worked once with a bucket and then the machine got air pockets which stoped the Karcher working. To clear the air pockets you need.. wait for it... a hose pipe attached to water mains. So I went and bought a 30m hose and special gardenia attachment to run the hose from my kitchen tap to the Karcher outside and boom! Works perfectly! The hose and bucket approach is a waste of money and I don’t know how Karcher can sell such a bad solution. The Karcher is good - parts are a bit cheap like the wheels and spout storage but otherwise works well.  Show details
Build Quality
Value for Money
Ease of Use
Cleaning & Maintenance
Noise Level
John
JohnGreater Melbourne (Inner), VIC2 posts
  Premium Full Control

not very robust

I have had two of these.
first one began surging after less than a year...replaced by supplier
second one worked ok for about a year..then began to smoke last week.
i wouldn't recommend this to anyone
 Show details
Build Quality
Value for Money
Ease of Use
Cleaning & Maintenance
Noise Level
Marty
MartySydney, NSW2 posts
  Premium Full Control

Garbage

Plastic rubbish. The lance wouldn't go in or out of the handle from out of the box, brand new. The hoses on these washers are terrible. They sell thousands of these things in Bunnings all over Australia yet there is only 1 service centre in the Sydney Metro area. It lasted about 9 months with average use. I looked at getting it repaired but it would not have been worth the cost and the time taking it to their 1 repair centre and picking it up. Have since bought another brand, it actually has more power, a steel braided hose and was about $130 dollars cheaper. Will never buy a Karcher product again. Show details
Noise Level
Safety
Rick
RickGreater Melbourne (Inner), VIC7 posts
  Premium Full Control

Poor quality design

Purchased K4 in 2013 for $469. Used it may be 15-20 times max for a couple of hours each time during the 7 years. Looks like new on the outside and inside except it now leaks. I took it apart and it's clear that the leak is from the motor unit/ high pressure head itself. I wish I read all the reviews here before buying this brand. Cheap plastic washers apparently don't last, especially if the unit is not used a lot. Repair will cost more than an alternative brand with same pressure. I'll stay away from this brand in the future. Show details
Ease of Use
Cleaning & Maintenance
Noise Level
Safety
Dave
DavePomona27 posts
  Premium Full Control

Great power and great warranty

POWEEEEERRRRRRRR......That's the word here!
The Karcher K4 made cleaning my deck actually FUN, so easy to use and the results are crazy good.
Great hose length 9 meters and power cord length compared to others I've had.
The digital readout on the handle is just a gimmick but the rest is fantastic.
BEWARE of getting too close to any wood with the pressure on high mode as it WILL dig holes into the wood. Show details ·  1
Build Quality
Value for Money
Noise Level
Safety
Craig L.
Craig L.Metropolitan Adelaide, SA5 posts
  Verified Premium Full Control
Value for Money
Jules C.
Jules C.Perth, WA4 posts
  Premium Full Control
Ease of Use
Noise Level
Safety

Questions & Answers

DJ H.
DJ H. · K4

plastic or metal pump

Ced N
Ced N  

Don’t know. You can check specs.

Tony B
Tony B · K4

What PSI is a model 399m & how old ?

Details

Compare all Karcher K4 listings
Karcher K4 Compact
Karcher K4 CompactNo reviews yet
CategoryElectric Pressure WashersElectric Pressure WashersElectric Pressure WashersElectric Pressure Washers
Maximum Pressure2,100 psi2,100 psi2,100 psi2,100 psi
Hose Length9 m6 m9 m9 m
Max Water Flow7 L/min7 L/min7 L/min7 L/min
Dimensions 584 x 306 x 417 mm520 x 308 x 348 mm584 x 306 x 417 mm584 x 306 x 417 mm
Weight12.91 kg11 kg13 kg13 kg
Power1,900 W1,900 W2,900 W1,900 W
Cord Length5 m5 m5 m
Manufacturer Warranty5 year(s)5 year(s)5 year(s)5 year(s)
ManualDownload manual

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