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Karcher pressure washer broken again?
V8MoneyPit:
I've owned that model for a few years and it's performed without fault. I use it on a very long hose and it's never given trouble.
jiffyman:
I wont touch Karchers, had no end of problems, all with the pressure switches failing!!!!!
It did the cut in and out thing on all of them.
Spoke to a bloke at the place i bought them and he said it was a common 'little known' fault with them!
Eventually went for a cheap B&Q own brand, had it 5years now, never let me down at all
waveydavey:
--- Quote from: Manicminer on September 21, 2008, 14:18:18 ---Run a hose from the tap into a large bucket and then let the pressure washer suck the water out of the bucket. That was the advice given about 20 years ago when pressure washers were sold to the public in the early days.
--- End quote ---
That is akin to throttling the tap a bit but even better.
Think of it another way; if your mains water pressure was high enough then the pump would never need to run and it would be fine. All you really have is half way there, the mains water is doing half the job of the pump so the pump only works half the time.
paul_humphreys:
--- Quote from: mike142sl on September 21, 2008, 08:37:13 ---
--- Quote from: paul_humphreys on September 20, 2008, 19:40:25 ---Do as I did, take it apart and "fix" it so the pressure is on all the time. Its easy to when its apart.
Paul
--- End quote ---
I have the 620M version - an older model but with a similar prob. Took it apart but no sign of any pressure switch. What does it look like?
--- End quote ---
If you take it apart. You will see the main part, its hard to explain. You will see the peice that works the pressure on the motor. It can be ajusted, but I fixed it so its at full pressure all the time.
If I can find a parts list, I will post it.
Paul
mm77:
--- Quote from: Manicminer on September 21, 2008, 14:18:18 ---Run a hose from the tap into a large bucket and then let the pressure washer suck the water out of the bucket. That was the advice given about 20 years ago when pressure washers were sold to the public in the early days.
--- End quote ---
On mine I always keep the handle on, power off and turn on the tap, so water mains pressure runs though, then turn off the handle. Then power on, This one does not get air blocks in the system which causes pumps to fail.
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