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MartinK



Member Since: 02 Mar 2011
Location: Silverdale (Lancashire/Cumbria Border)
Posts: 2665

United Kingdom 2011 Defender 110 Puma 2.4 USW Orkney Grey
Karcher 620m Power Washer Help!
My trusty Karcher 620 power washer has given up the ghost.

The power looks ok - the green light on the switch illuminates, and the motor comes on and sounds as usual.
Water comes out...but only at normal tap pressure.
Normally, when the trigger is not pressed (i.e. no flow) the motor stops until the trigger is pressed again.
But the motor doesn't stop anymore when not spraying (just keeps churning)
No leaks

No pressure at all other than normal tap pressure.

I've owned it from new, and it'sd not been abused, but it is about 10 years old!

Anyone care to help me diagnose please???

It's the model that looks like this:


All help appreciated...spares seem to be plentiful (such as espares) so I hope to avoid buying a new one...

Cheers Defender "Puma" 2.4 110 County Utility (possibly the last of the 2.4's)
Post #119241 28th Jan 2012 12:31pm
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pom



Member Since: 01 Jun 2010
Location: Worcester
Posts: 1343

mine did that after i left in the shed and it froze.

Pom
Post #119242 28th Jan 2012 12:35pm
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Martyn



Member Since: 10 Feb 2011
Location: Stourbridge, West Midlands
Posts: 151

United Kingdom 2014 Defender 90 Puma 2.2 PU Keswick Green
This happened to me also with two washers - a Karcher and a JCB. On the Karcher, it was left in the shed and the water in the pump froze and nackard it (all plastic). On the JCB (all metal bits) the bearings in the pump unit seized up - it was several years old.

Karcher offer up a good line of spares - everything can be bought. From experience however, parts often well exceed the cost of a new replacement.
Post #119244 28th Jan 2012 12:58pm
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

United Kingdom 
Sounds like the pump impellers have given up the ghost, or perhaps the drive shaft has sheared. Something like that that stops the pressure building up, which is why it runs continuosly. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #119245 28th Jan 2012 12:58pm
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Laurie



Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897

England 2005 Defender 90 Td5 XS CSW Bonatti Grey
Time to buy a new one.
Don't buy Karcher again, they're penny pinching. Short hoses and leads. Even the detergent bottles are optional extras (which most shops don't stock)
Ideally, find one with a ceramic pump if you use it a lot.
....and keep it away from frost!
Post #119250 28th Jan 2012 1:12pm
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bpman



Member Since: 21 May 2008
Location: Oslo
Posts: 8069

2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
treat yourself to a Sthil pressure washer Thumbs Up

Not as expensive as you would think and a 8 or 9m hose
Post #119260 28th Jan 2012 1:42pm
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Zagato
Site Supporter


Member Since: 08 Jan 2011
Location: Billingshurst West Sussex
Posts: 5012

United Kingdom 
Second Sthil kit. I haven't a pressure washer but petrol, hedge trimmer. strimmer,chainsaw, blower etc They are the best. The councils use them. I don't maintain mine from year to year properly (never changed a plug etc! Rolling Eyes ) but this equipment I rely upon for work always starts, it abusive proof kit Wink Pays in the long run and short term compared to some rubbish Rolling Eyes
Post #119270 28th Jan 2012 2:36pm
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

United Kingdom 
A quick Google suggest that a new pump set is around £86.

http://www.cleanstuff.co.uk/acatalog/Karch...Parts.html

You need to sure that's the problem, of course. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia


Last edited by LandRoverAnorak on 28th Jan 2012 6:27pm. Edited 1 time in total
Post #119336 28th Jan 2012 5:58pm
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Laurie



Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897

England 2005 Defender 90 Td5 XS CSW Bonatti Grey
Link doesn't work Sad 

Last edited by Laurie on 28th Jan 2012 6:46pm. Edited 1 time in total
Post #119340 28th Jan 2012 6:17pm
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

United Kingdom 
Sorry. Now fixed. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #119346 28th Jan 2012 6:28pm
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MartinK



Member Since: 02 Mar 2011
Location: Silverdale (Lancashire/Cumbria Border)
Posts: 2665

United Kingdom 2011 Defender 110 Puma 2.4 USW Orkney Grey
Wow - thanks for the replies, gents, much appreciated, I've been out on my mountain bike most of the afternoon, and came back to 9 useful replies - great forum Smile

LRA - thanks for the link - sounds like a good diagnisis to me.
Zag/BPman - I'm a fan of Stihl as well, owned one of their chainsaws (I have a wood-burning stove) for about a year now - top kit.
Martyn/Pom/Laurie - it's kept in a relatively warm garage in Aviemore...but of course it's been very cold here, so the frost may have managed to get into it I guess Embarassed

I'll try and take the pump out in the morning.

Any ideas if I can confirm (once it's taken off) if it is the pump that's the fault before I part with £86???

Cheers Defender "Puma" 2.4 110 County Utility (possibly the last of the 2.4's)
Post #119368 28th Jan 2012 7:27pm
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pom



Member Since: 01 Jun 2010
Location: Worcester
Posts: 1343

if it was me, I'd take use the Stihl chainsaw to repair it.

Pom
Post #119369 28th Jan 2012 7:32pm
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mermoto



Member Since: 21 Sep 2011
Location: Essex
Posts: 326

Get yourself a Kranzle - Thumbs Up



Mermoto
Post #119376 28th Jan 2012 7:42pm
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Drew



Member Since: 04 Sep 2009
Location: Sutton, Surrey
Posts: 30

United Kingdom 2008 Defender 90 Puma 2.4 HT Stornoway Grey
mermoto wrote:
Get yourself a Kranzle - Thumbs Up



Mermoto


Second vote for the Kranzle Thumbs Up
Post #119990 31st Jan 2012 1:07am
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ay4alex



Member Since: 18 Feb 2009
Location: Midlands
Posts: 328

United Kingdom 2008 Defender 110 Puma 2.4 XS DCPU Java Black
Karcher is good kit, provided it isn't left to freeze. our Diesel hot pressure wash is still going very strong.
As already said the Sthil kit is bomb proof, absolutely swear by the chainsaws, strimmers, hedge trimmers and blowers.

Alex 110 Tdci Double Cab
Post #120050 31st Jan 2012 11:50am
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